
64
Normally, if everything is working properly, a point
The aim of this is not to explain the SIP protocol, as that is very complex, but it can be useful for
a quick diagnosis, especially if you look at the following points:
1. Traces of messages transmitted (
destination is incorrect or has not been configured.
2. Messages received (
[RX]
terminal is not receiving the packets sent by the IPefono.
configuration of the network and the SIP ports.
CMD>trace sip
Traces CMD>trace sip
Traces ON: sip
CMD>
[TX]
INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 192.168.22.41:5060;branch=z9h2154bKhj240hs8a2s7
From: "Entrada1" <sip:[email protected]>;tag=2569624584
To: <sip:[email protected]>
CSeq: 0 INVITE
Call-ID: [email protected]
Contact: <sip:[email protected]>;expires=60
Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, INFO, NOTIFY,
Content-Type: application/sdp
Content-Length: 206
v=0
o=4041 2917173441 2917173441 IN IP4 192.168.22.41
s=-
c=IN IP4 192.168.22.41
t=0 0
m=audio 5004 RTP/AVP 8 101
a=rtpmap:8 PCMA/8000
a=rtpmap:101 telephone-
a=fmtp:101 0-15
a=ptime:40
[sip] SipSetStatus(SIP_CALLING)
[RX]
SIP/2.0 100 Trying
Via: SIP/2.0/UDP 192.168.22.41:5060;branch=z9h2154bKhj240hs8a2s777;rport=5060
6 – System administration
Configuration Guide
Normally, if everything is working properly, a point-to-point call is traced as follows:
The aim of this is not to explain the SIP protocol, as that is very complex, but it can be useful for
a quick diagnosis, especially if you look at the following points:
Traces of messages transmitted (
[TX]
) should appear, otherwise it is likely that the
destination is incorrect or has not been configured.
[RX]
) should appear. Otherwise this indicates that the remote
terminal is not receiving the packets sent by the IPefono. You will have to review the
configuration of the network and the SIP ports.
INVITE sip:[email protected] SIP/2.0
Via: SIP/2.0/UDP 192.168.22.41:5060;branch=z9h2154bKhj240hs8a2s777;rport
From: "Entrada1" <sip:[email protected]>;tag=2569624584
To: <sip:[email protected]>
Contact: <sip:[email protected]>;expires=60
Allow: INVITE, ACK, OPTIONS, BYE, CANCEL, INFO, NOTIFY, SUBSCRIBE
Type: application/sdp
o=4041 2917173441 2917173441 IN IP4 192.168.22.41
m=audio 5004 RTP/AVP 8 101
-event/8000
[sip] SipSetStatus(SIP_CALLING)
Via: SIP/2.0/UDP 192.168.22.41:5060;branch=z9h2154bKhj240hs8a2s777;rport=5060
System administration
Configuration Guide. IPefono. V2.8
point call is traced as follows:
The aim of this is not to explain the SIP protocol, as that is very complex, but it can be useful for
) should appear, otherwise it is likely that the call
) should appear. Otherwise this indicates that the remote
have to review the
77;rport
SUBSCRIBE
Via: SIP/2.0/UDP 192.168.22.41:5060;branch=z9h2154bKhj240hs8a2s777;rport=5060