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<p class="MsoPlainText">> I'd do a packet capture -- ideally from the phone, or using your switch to mirror the phone's port -- and look for a SIP NOTIFY. Then
<o:p></o:p></p>
<p class="MsoPlainText">> we can know if a NOTIFY is not being sent, or if it's just not being processed as desired by your Cisco SPA 509G. If it's not there, do
<o:p></o:p></p>
<p class="MsoPlainText">> the same on your asterisk server, and if we see it on the asterisk server but not at the endpoint, we can suspect network
<o:p></o:p></p>
<p class="MsoPlainText">> configuration.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">> You can also get some more detail about what endpoints are subscribed with "sip show subscriptions" in the asterisk console, but
<o:p></o:p></p>
<p class="MsoPlainText">> since it says "Watchers 2", that suggests the subscription has been made. I'd just verify that specifically the device you are using for
<o:p></o:p></p>
<p class="MsoPlainText">> testing is subscribed.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">> Also, I know if you turn the verbosity up high enough (core set verbosity 3) you will get messages in the console about notifications
<o:p></o:p></p>
<p class="MsoPlainText">> sent. You can also "set sip debug on" or something along those lines and have Asterisk print all the SIP traffic it's attempting to send.
<o:p></o:p></p>
<p class="MsoPlainText">> Should help you narrow the possible causes.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Here's the sequence I'm seeing with a packet capture from the Asterisk server:<o:p></o:p></p>
<p class="MsoPlainText" style="margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>301 calls 302. The INVITE from 301 hits Asterisk. Asterisk sends back 100 Trying, and then a NOTIFY to 302 and 303 (which are both subscribed to 301, and they see 301 change to “in use”). 302 and 303 send back 200 OK for the NOTIFYs.<o:p></o:p></p>
<p class="MsoPlainText" style="margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Asterisk sends the INVITE to 302. 302 sends back 100 Trying and then 180 Ringing. After the 180 Ringing, Asterisk sends a NOTIFY to 301 (which I have subscribed to hint 305, which is mapped to SIP/<device> corresponding to the one
I have logged in as 302). No other NOTIFY updates are sent at this time.<o:p></o:p></p>
<p class="MsoPlainText" style="margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>I pick up on 302. 302 sends a 200 OK with session description to Asterisk. Asterisk ACKs this 200 and then sends 2 NOTIFYs to 301 (which is subscribed to both the 302 “Custom device” hint and the 305 “SIP Physical device” hint), and
also sends 1 NOTIFY to 303 (which is only subscribed to the 302 “Custom device” hint).<o:p></o:p></p>
<p class="MsoPlainText" style="margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>While 301 and 302 are still “on the call”, 303 calls 302. The INVITE from 303 hits Asterisk. Asterisk sends back 100 Trying, and then a NOTIFY to 302 (subscribed to the “Custom device” hint for 303) and 2 NOTIFYs to 301 (subscribed
to both the “Custom device” and “SIP Physical device” hints).<o:p></o:p></p>
<p class="MsoPlainText" style="margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>Asterisk sends the INVITE to 302. 302 sends back 100 Trying and then 180 Ringing. After the 180 Ringing, Asterisk sends a NOTIFY to 301 (which updates the “SIP Physical device” hint). No other NOTIFY updates are sent at this time.<o:p></o:p></p>
<p class="MsoPlainText" style="margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>303 cancels the call and sends a CANCEL to Asterisk. Asterisk responds with 200 OK, sends a NOTIFY to 301, sends a CANCEL to 302, and then sends another NOTIFY to 301. 303 then ACKs Asterisk’s SIP 487, and Asterisk sends 1 additional
NOTIFY to 302 and 301.<o:p></o:p></p>
<p class="MsoPlainText" style="margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo1">
<![if !supportLists]><span style="mso-list:Ignore">-<span style="font:7.0pt "Times New Roman"">
</span></span><![endif]>301 and 302 finish their call. Asterisk sends a total of 1 NOTIFY to 302 (the status for “Custom device” 301), 2 NOTIFYs to 303 (the status for “Custom device” 301 and 302), and 2 NOTIFYs to 301 (the status for “Custom device” 302 and
“Physical Device” 302).<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">So, it looks to me like I’m missing NOTIFYs for RINGING or RING_INUSE events on Custom devices.<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">(Slightly sanitized) Verbose 3 output is pastebin’d: <a href="http://pastebin.com/q51XUeHe">
http://pastebin.com/q51XUeHe</a><o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">The short of the output is – there is no console output showing == Extension Changed 302[hints] new state on the Ringing or InUse&Ringing events – only on InUse or Idle events (which matches what I’m seeing on the phones).<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Thank you,<o:p></o:p></p>
<p class="MsoPlainText"><o:p> </o:p></p>
<p class="MsoPlainText">Noah Engelberth<o:p></o:p></p>
<p class="MsoPlainText">MetaLINK Technologies<o:p></o:p></p>
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