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<p class=MsoNormal>I have loaded the SIP firmware for an Avaya 4610sw IP phone
and have successfully registered it to Asterisk BE and Asterisk 1.4.18. I am
however experiencing two issues that I am hoping someone has already overcome.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The first one is that the phone looses it’s
registration from Asterisk every now and then. I found a tip that may work and
am now testing which is to comment the line mailbox=(extension) from it’s
sip.conf configuration.<o:p></o:p></p>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>The second issue is that if I make a call and place the call
on hold, when I pick up the line to resume the call, I hear no audio on neither
the originating or destination phone. If I place the call on hold again, I can
hear music on hold on the destination phone.<o:p></o:p></p>
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