Hi,<br><br>From recent experiences with 1.4.23.1, Asterisk doesn't need any incoming MWI-related SUBSCRIBE message to send NOTIFY messages changing phones MWI status.<br>This is fine for me but I'm wondering what if I were using SIP hardphones refusing any such NOTIFY without prior SUBSCRIBE (does such phones exist ?) ?<br>
<br>1. In this case, which URI shall use a hardphone to build its SUBSCRIBE message ?<br>Here is a hand written example.<br>Which value should I substitute to foo (in this example) to receive NOTIFY (as if I had typed mailbox=7533 in sip.conf) ?<br>
Obviously, typing 7533 gets a "Received SIP subscribe for peer without mailbox: 7533" as if mailbox=7533 was not only used for MWI but also as a check for a mailbox's existence (though corresponding mailbox is defined in voicemail.conf).<br>
<br>
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<p style="margin-left: 1.25cm;">SUBSCRIBE
sip:<font color="#ff0000"><b>foo</b></font>@192.168.100.254:5060;user=phone
SIP/2.0</p>
<p style="margin-left: 1.25cm;">Via: SIP/2.0/UDP
192.168.100.193:5060;branch=z9hG4bK8031919793092643643-24593</p>
<p style="margin-left: 1.25cm;">From:
<<a href="http://sip:7533@192.168.100.254:5060">sip:7533@192.168.100.254:5060</a>>;tag=c0a80101-600e</p>
<p style="margin-left: 1.25cm;">To: <<a href="http://sip:7533@192.168.100.254:5060">sip:7533@192.168.100.254:5060</a>></p>
<p style="margin-left: 1.25cm;">Call-ID:
<a href="mailto:c001-c0a80101-d-2@192.168.100.193">c001-c0a80101-d-2@192.168.100.193</a></p>
<p style="margin-left: 1.25cm;">CSeq: 2 SUBSCRIBE</p>
<p style="margin-left: 1.25cm;">Max-Forwards: 70</p>
<p style="margin-left: 1.25cm;">Event: message-summary</p>
<p style="margin-left: 1.25cm;">Accept:
application/simple-message-summary</p>
<p style="margin-left: 1.25cm;">Expires: 3600</p>
<p style="margin-left: 1.25cm;">Contact:
<sip:7533@192.168.100.193:5060;user=phone></p>
<p style="margin-left: 1.25cm;">Allow-Events:
refer,dialog,message-summary,check-sync,talk,hold</p>
<p style="margin-left: 1.25cm;">Authorization: Digest username="7533",
realm="asterisk", nonce="2a533466",
uri="sip:pipo@192.168.100.254:5060;user=phone",
response="10d6fafe54a12319983a810938f55cd6", algorithm=MD5</p>
<p style="margin-left: 1.25cm;">User-Agent: THOMSON ST2030 hw5 fw1.64
00-1F-9F-16-22-AB</p>
<p style="margin-left: 1.25cm;">Content-Length: 0</p><br>2. What could be a benefit a using SUBSCRIBEs over not using them ?<br><br>Regards<br><br><br>