We are having an issue on 3cx V.15 where phones are dropping out several times a day and disrupting staff and calls. We are using Snom 715s. I believe I have tracked the issue down in the logs. I have pasted it in below.
02/01/2017 8:25:28 AM - [CM505001]: Endpoint Extn:7680: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [snom715/8.9.3.38] PBX contact: [sip:[email protected]:5060]
02/01/2017 8:25:28 AM - [CM500002]: Call(C:4978): Info on incoming INVITE from Extn:7680:
Invite-IN Recv Req INVITE from xx.xx.xx.65:49906 tid=-y2a64gg5j9yr Call-ID=313438353839373932383134383735-9gg9eqj826q1:
INVITE sip:[email protected]:5060;user=phone SIP/2.0
Via: SIP/2.0/UDP xx.xx.xx.65:49906;branch=z9hG4bK-y2a64gg5j9yr;rport=49906
Max-Forwards: 70
Contact: <sip:[email protected]:49906;line=ts21u07a>;reg-id=1
To: <sip:[email protected]:5060;user=phone>
From: "Sibel Yilmaz"<sip:[email protected]:5060>;tag=boc0o9tqks
Call-ID: 313438353839373932383134383735-9gg9eqj826q1
CSeq: 57321 INVITE
Session-Expires: 3600
Min-SE: 90
Accept: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO, UPDATE
Content-Type: application/sdp
Proxy-Authorization: Digest username="7680",realm="3CXPhoneSystem",nonce="414d535c0ea191c890:0eed902f6c4b039af3d1c13d0d79840b",uri="sip:[email protected]:5060;user=phone",response="d433cb23a0768c342720dd4150ecb533",algorithm=MD5
Supported: timer, 100rel, replaces, from-change
User-Agent: snom715/8.9.3.38
Allow-Events: talk, hold, refer, call-info
X-Serialnumber: xxxxxxxxxxxxx
P-Key-Flags: resolution="31x13", keys="4"
Content-Length: 311
v=0
o=root 543796048 543796048 IN IP4 10.61.13.65
s=call
c=IN IP4 10.61.13.65
t=0 0
m=audio 50160 RTP/AVP 0 8 9 18 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:9 G722/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
I'm not sure why it looks like the phones need to reauthenticate with the server all the time. Is there a way to resolve this problem?
02/01/2017 8:25:28 AM - [CM505001]: Endpoint Extn:7680: Device info: Device Not Identified: User Agent not matched; Capabilities:[reinvite, replaces, able-no-sdp, recvonly] UserAgent: [snom715/8.9.3.38] PBX contact: [sip:[email protected]:5060]
02/01/2017 8:25:28 AM - [CM500002]: Call(C:4978): Info on incoming INVITE from Extn:7680:
Invite-IN Recv Req INVITE from xx.xx.xx.65:49906 tid=-y2a64gg5j9yr Call-ID=313438353839373932383134383735-9gg9eqj826q1:
INVITE sip:[email protected]:5060;user=phone SIP/2.0
Via: SIP/2.0/UDP xx.xx.xx.65:49906;branch=z9hG4bK-y2a64gg5j9yr;rport=49906
Max-Forwards: 70
Contact: <sip:[email protected]:49906;line=ts21u07a>;reg-id=1
To: <sip:[email protected]:5060;user=phone>
From: "Sibel Yilmaz"<sip:[email protected]:5060>;tag=boc0o9tqks
Call-ID: 313438353839373932383134383735-9gg9eqj826q1
CSeq: 57321 INVITE
Session-Expires: 3600
Min-SE: 90
Accept: application/sdp
Allow: INVITE, ACK, CANCEL, BYE, REFER, OPTIONS, NOTIFY, SUBSCRIBE, PRACK, MESSAGE, INFO, UPDATE
Content-Type: application/sdp
Proxy-Authorization: Digest username="7680",realm="3CXPhoneSystem",nonce="414d535c0ea191c890:0eed902f6c4b039af3d1c13d0d79840b",uri="sip:[email protected]:5060;user=phone",response="d433cb23a0768c342720dd4150ecb533",algorithm=MD5
Supported: timer, 100rel, replaces, from-change
User-Agent: snom715/8.9.3.38
Allow-Events: talk, hold, refer, call-info
X-Serialnumber: xxxxxxxxxxxxx
P-Key-Flags: resolution="31x13", keys="4"
Content-Length: 311
v=0
o=root 543796048 543796048 IN IP4 10.61.13.65
s=call
c=IN IP4 10.61.13.65
t=0 0
m=audio 50160 RTP/AVP 0 8 9 18 101
a=rtpmap:0 PCMU/8000
a=rtpmap:8 PCMA/8000
a=rtpmap:9 G722/8000
a=rtpmap:18 G729/8000
a=fmtp:18 annexb=no
a=rtpmap:101 telephone-event/8000
a=fmtp:101 0-15
a=ptime:20
a=sendrecv
I'm not sure why it looks like the phones need to reauthenticate with the server all the time. Is there a way to resolve this problem?
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