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 <pre style="white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I understand what you are doing, and this makes sense to me.  Most of my comments are coding style related, although I did have one functional concern about the use of the sendingdtmf variable.  While the coding style comments may seem like I&#39;m just nitpicking, I believe they are necessary in reducing complexity for everyone maintaining the project.</pre>
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    <a href="https://reviewboard.asterisk.org/r/1092/diff/1/?file=15457#file15457line1528" style="color: black; font-weight: bold; text-decoration: underline;">/team/oej/pinesounds-dtmf-feature-delay-1.4/res/res_features.c</a>
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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int feature_interpret_helper(struct ast_channel *chan, struct ast_channel *peer,</pre></td>

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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1528</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="kt">int</span> <span class="n">res</span> <span class="o">=</span> <span class="n">FEATURE_RETURN_PASSDIGITS</span><span class="p">;</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1528</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="kt">int</span> <span class="n">res</span> <span class="o">=</span> <span class="n">FEATURE_RETURN_PASSDIGITS</span><span class="p">;</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1529</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="kt">int</span> <span class="n">feature_detected</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1529</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="kt">int</span> <span class="n">feature_detected</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1530</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1530</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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    <th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1531</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="p">(</span><span class="n">peer</span> <span class="o">&amp;&amp;</span> <span class="n">chan</span> <span class="o">&amp;&amp;</span> <span class="n">config</span><span class="p">)</span> <span class="o">&amp;&amp;</span> <span class="n">operation</span><span class="p">)</span> <span class="p">{</span></pre></td>
    <th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1531</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="k">if</span> <span class="p">(</span><span class="o">!</span><span class="p">(</span><span class="n">peer</span> <span class="o">&amp;&amp;</span> <span class="n">chan</span> <span class="o">&amp;&amp;</span> <span class="n">config</span><span class="p">)</span> <span class="o">&amp;&amp;</span> <span class="n">operation</span><span class="hl"> </span><span class="o"><span class="hl">==</span></span><span class="hl"> </span><span class="mi"><span class="hl">1</span></span><span class="p">)</span> <span class="p">{</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1532</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span> <span class="cm">/* can not run feature operation */</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1532</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="k">return</span> <span class="o">-</span><span class="mi">1</span><span class="p">;</span> <span class="cm">/* can not run feature operation */</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1533</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="p">}</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1533</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">        <span class="p">}</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">If operation is going to be overloaded to mean multiple things, it needs to be updated in the function&#39;s documentation.  I&#39;d also recommend creating an enum to represent the different values operation can be.  This helps self document the code.</pre>
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    <a href="https://reviewboard.asterisk.org/r/1092/diff/1/?file=15457#file15457line1549" style="color: black; font-weight: bold; text-decoration: underline;">/team/oej/pinesounds-dtmf-feature-delay-1.4/res/res_features.c</a>
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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int feature_interpret_helper(struct ast_channel *chan, struct ast_channel *peer,</pre></td>

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    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1549</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                                <span class="k">if</span> <span class="p">(</span><span class="n">feature</span><span class="p">)</span> <span class="p">{</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1547</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                                <span class="n">memcpy</span><span class="p">(</span><span class="n">feature</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">builtin_features</span><span class="p">[</span><span class="n">x</span><span class="p">],</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">feature</span><span class="p">));</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1550</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                                        <span class="n">memcpy</span><span class="p">(</span><span class="n">feature</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">builtin_features</span><span class="p">[</span><span class="n">x</span><span class="p">],</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">feature</span><span class="p">));</span></pre></td>
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    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1551</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                                <span class="p">}</span></pre></td>
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    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1552</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">why was this check added?</pre>
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    <a href="https://reviewboard.asterisk.org/r/1092/diff/1/?file=15457#file15457line1580" style="color: black; font-weight: bold; text-decoration: underline;">/team/oej/pinesounds-dtmf-feature-delay-1.4/res/res_features.c</a>
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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int feature_interpret_helper(struct ast_channel *chan, struct ast_channel *peer,</pre></td>

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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1575</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="p">}</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1580</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="p">}</span></pre></td>
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    <th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1576</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="k">if</span> <span class="p">(</span><span class="n">operation</span><span class="p">)</span> <span class="p">{</span></pre></td>
    <th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1581</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="k">if</span> <span class="p">(</span><span class="n">operation</span><span class="hl"> </span><span class="o"><span class="hl">==</span></span><span class="hl"> </span><span class="mi"><span class="hl">2</span></span><span class="p">)</span> <span class="p">{</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1582</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                                <span class="n">res</span> <span class="o">=</span> <span class="n">FEATURE_RETURN_SUCCESS</span><span class="p">;</span> <span class="cm">/* We found something */</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1583</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="n">operation</span><span class="p">)</span> <span class="p">{</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1577</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                                <span class="n">res</span> <span class="o">=</span> <span class="n">tmpfeature</span><span class="o">-&gt;</span><span class="n">operation</span><span class="p">(</span><span class="n">chan</span><span class="p">,</span> <span class="n">peer</span><span class="p">,</span> <span class="n">config</span><span class="p">,</span> <span class="n">code</span><span class="p">,</span> <span class="n">sense</span><span class="p">,</span> <span class="n">tmpfeature</span><span class="p">);</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1584</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                                <span class="n">res</span> <span class="o">=</span> <span class="n">tmpfeature</span><span class="o">-&gt;</span><span class="n">operation</span><span class="p">(</span><span class="n">chan</span><span class="p">,</span> <span class="n">peer</span><span class="p">,</span> <span class="n">config</span><span class="p">,</span> <span class="n">code</span><span class="p">,</span> <span class="n">sense</span><span class="p">,</span> <span class="n">tmpfeature</span><span class="p">);</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">It would also be useful to create a new return value indicating that the feature was just being looked for and was found.</pre>
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    <a href="https://reviewboard.asterisk.org/r/1092/diff/1/?file=15457#file15457line1586" style="color: black; font-weight: bold; text-decoration: underline;">/team/oej/pinesounds-dtmf-feature-delay-1.4/res/res_features.c</a>
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     (Diff revision 1)

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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">static int feature_interpret_helper(struct ast_channel *chan, struct ast_channel *peer,</pre></td>

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    <th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1579</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="n">memcpy</span><span class="p">(</span><span class="n">feature</span><span class="p">,</span> <span class="n">tmpfeature</span><span class="p">,</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">feature</span><span class="p">));</span></pre></td>
    <th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1586</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="k">if</span> <span class="p">(</span><span class="n">feature</span><span class="p">)</span> <span class="p">{</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1587</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                                <span class="n">memcpy</span><span class="p">(</span><span class="n">feature</span><span class="p">,</span> <span class="o">&amp;</span><span class="n">builtin_features</span><span class="p">[</span><span class="n">x</span><span class="p">],</span> <span class="k">sizeof</span><span class="p">(</span><span class="n">feature</span><span class="p">));</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1588</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="p">}</span></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">1580</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="k">if</span> <span class="p">(</span><span class="n">res</span> <span class="o">!=</span> <span class="n">FEATURE_RETURN_KEEPTRYING</span><span class="p">)</span> <span class="p">{</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">1589</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="k">if</span> <span class="p">(</span><span class="n">res</span> <span class="o">!=</span> <span class="n">FEATURE_RETURN_KEEPTRYING</span><span class="p">)</span> <span class="p">{</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">I don&#39;t understand this check.</pre>
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    <a href="https://reviewboard.asterisk.org/r/1092/diff/1/?file=15457#file15457line2357" style="color: black; font-weight: bold; text-decoration: underline;">/team/oej/pinesounds-dtmf-feature-delay-1.4/res/res_features.c</a>
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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">int ast_bridge_call(struct ast_channel *chan,struct ast_channel *peer,struct ast_bridge_config *config)</pre></td>

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    <th bgcolor="#e9eaa8" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">2341</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="n">f</span><span class="o">-&gt;</span><span class="n">frametype</span> <span class="o">==</span> <span class="n">AST_FRAME_DTMF_BEGIN</span><span class="p">)</span> <span class="p">{</span></pre></td>
    <th bgcolor="#e9eaa8" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">2357</font></th>
    <td bgcolor="#fdfebc" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="n">f</span><span class="o">-&gt;</span><span class="n">frametype</span> <span class="o">==</span> <span class="n">AST_FRAME_DTMF</span><span class="hl"> </span><span class="o"><span class="hl">||</span></span><span class="hl"> </span><span class="n"><span class="hl">f</span></span><span class="o"><span class="hl">-&gt;</span></span><span class="n"><span class="hl">frametype</span></span><span class="hl"> </span><span class="o"><span class="hl">==</span></span><span class="hl"> </span><span class="n"><span class="hl">AST_FRAME_DTMF</span>_BEGIN</span><span class="p">)</span> <span class="p">{</span></pre></td>
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    <th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">2342</font></th>
    <td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="cm">/* eat it */</span></pre></td>
    <th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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    <th bgcolor="#ebb1ba" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">2343</font></th>
    <td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                <span class="p">}</span> <span class="k">else</span> <span class="k">if</span> <span class="p">(</span><span class="n">f</span><span class="o">-&gt;</span><span class="n">frametype</span> <span class="o">==</span> <span class="n">AST_FRAME_DTMF</span><span class="p">)</span> <span class="p">{</span></pre></td>
    <th bgcolor="#ebb1ba" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#ffc5ce" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
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    <th bgcolor="#f0f0f0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2">2344</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="kt">char</span> <span class="o">*</span><span class="n">featurecode</span><span class="p">;</span></pre></td>
    <th bgcolor="#f0f0f0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">2358</font></th>
    <td bgcolor="#ffffff" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">                        <span class="kt">char</span> <span class="o">*</span><span class="n">featurecode</span><span class="p">;</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Since we already have an if else case for both DTMF end and DTMF begin, why do we need to combine them both now?  It just increases indentation and complexity.</pre>
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    <a href="https://reviewboard.asterisk.org/r/1092/diff/1/?file=15457#file15457line2394" style="color: black; font-weight: bold; text-decoration: underline;">/team/oej/pinesounds-dtmf-feature-delay-1.4/res/res_features.c</a>
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   <td colspan="4"><pre style="font-size: 8pt; line-height: 140%; margin: 0; ">int ast_bridge_call(struct ast_channel *chan,struct ast_channel *peer,struct ast_bridge_config *config)</pre></td>

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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">2392</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>                <span class="p">}</span> <span class="k">else</span> <span class="p">{</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">2393</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>                        <span class="k">if</span> <span class="p">(</span><span class="n">sendingdtmfdigit</span> <span class="o">==</span> <span class="mi">1</span><span class="p">)</span> <span class="p">{</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">2394</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>                                <span class="cm">/* We let the BEGIN go through happily, so let&#39;s not bother with the END, since we already</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">2395</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="cm"><span class="ew">         </span>                                   know it&#39;s not something we bother with */</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">2396</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>                                <span class="n">ast_write</span><span class="p">(</span><span class="n">other</span><span class="p">,</span> <span class="n">f</span><span class="p">);</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">2397</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>                                <span class="n">sendingdtmfdigit</span> <span class="o">=</span> <span class="mi">0</span><span class="p">;</span></pre></td>
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    <th bgcolor="#b1ebb0" style="border-right: 1px solid #C0C0C0;" align="right"><font size="2"></font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "></pre></td>
    <th bgcolor="#b1ebb0" style="border-left: 1px solid #C0C0C0; border-right: 1px solid #C0C0C0;" align="right"><font size="2">2398</font></th>
    <td bgcolor="#c5ffc4" width="50%"><pre style="font-size: 8pt; line-height: 140%; margin: 0; "><span class="ew">         </span>                        <span class="p">}</span> <span class="k">else</span> <span class="p">{</span></pre></td>
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<pre style="margin-left: 2em; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Could there ever be a scenario where multiple DTMF begins are received before the DTMF ends come through?  If so, the assumption the use of this variable makes may not hold true.</pre>
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<p>- David</p>


<br />
<p>On February 3rd, 2011, 2:55 a.m., Olle E Johansson wrote:</p>






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<div>Review request for Asterisk Developers.</div>
<div>By Olle E Johansson.</div>


<p style="color: grey;"><i>Updated 2011-02-03 02:55:01</i></p>




<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Description </h1>
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   <pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">When a channel listens for DTMF in the core bridge, the outbound DTMF is not sent until we have received DTMF_END. For a long DTMF, this is a disaster. We send 4 seconds of DTMF to Asterisk, asterisk starts sending after and the call is interrupted for a total of 8 secs.

With this change, the DTMF_BEGIN frame is inspected and checked. If it matches a feature code, we wait for DTMF_END and activate the feature as before. If it doesn&#39;t match a feature, the frame is forwarded along with the DTMF_END without delay. By doing it this way, DTMF is not delayed.

I&#39;ve also changed two DTMF relay events to actually use the same duration as the incoming DTMF.

I have no experience of messing around with features.c and bridges, so please review this carefully. It is proven to work both in a 1.6.0 version and 1.4.

(I will remove the red code... Hard to miss)</pre>
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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Testing </h1>
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   <pre style="margin: 0; padding: 0; white-space: pre-wrap; white-space: -moz-pre-wrap; white-space: -pre-wrap; white-space: -o-pre-wrap; word-wrap: break-word;">Testing done with multiple phones in 1.6.0 and 1.4 versions of this patch.</pre>
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<div style="margin-top: 1.5em;">
 <b style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Bugs: </b>


 <a href="https://issues.asterisk.org/view.php?id=18738">18738</a>


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<h1 style="color: #575012; font-size: 10pt; margin-top: 1.5em;">Diffs</b> </h1>
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 <li>/team/oej/pinesounds-dtmf-feature-delay-1.4/res/res_features.c <span style="color: grey">(305981)</span></li>

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<p><a href="https://reviewboard.asterisk.org/r/1092/diff/" style="margin-left: 3em;">View Diff</a></p>




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