i`m i doubt that the following Sip message we are receiving from an Endpoint, connected via a Sip Trunk is right.
For me it seems there are Information missing.
Let me explain the traffic case
An Attandant console is connected via a Sip Trunk at the CUCM system that is running version 8.5.
In the case these Attandant console is switched to night mode and an internal cisco extension calling the internal or external queue number the call goes fail. ( Same happen when i calling from an external phone )
So we have these call flow
cisco Phone ----> CtiRP Number 8890 ---> Sip Trunk ----> Attendant Server ----> Night extension is 1221
The Sip signalling flow is right, we receiviing a SIP Message 302 Move Temporary with a contact address
firstname.lastname@example.org but not part of the content is the reason.
For me, the information regarding Diversion reason are missing but mandatory adn so the call goes fail
I would like to know your opinion if i`m right with my assumption or not.
Here the mentined SIP message.
SIP/2.0 302 Moved Temporarily
Via: SIP/2.0/UDP 10.16.2.30:5060;branch=z9hG4bKa7eaad3d04de73
CSeq: 101 INVITE
Server: Aastra NeTS 188.8.131.52/184.108.40.206
Allow: INVITE, OPTIONS, INFO, BYE, CANCEL, ACK, INFO, UPDATE, REFER, SUBSCRIBE, NOTIFY
Supported: histinfo, replaces
Are you dialing via a cisco Voice GW?
Have you got the following if you do have a gw?
voice service voip
no notify redirect ip2ip
allow-connections sip to sip
allow-connections sip to h323
allow-connections h323 to h323
allow-connections h323 to sip
we do not use a gateway at this traffic case. It is a pure CUCM sip Trunk Attendant server connection.
The call fails with the SIP message 503 Service unavailable.
Here the content.
SIP/2.0 503 Service Unavailable
Via: SIP/2.0/UDP 10.16.2.30:5060;branch=z9hG4bKa7eaae23b23e62
Date: Wed, 18 Dec 2013 11:14:38 GMT
CSeq: 102 INVITE
Warning: 399 tk-cucm-rz "Unable to find a device handler for the request received on port 5060 from 10.16.2.30"
This occurs when the source IP address that is sending the SIP INVITE does not exist as a SIP trunk in CUCM. You may have never created it, or the IP address may not be the one that is in use
Run On All Active Unified CM Nodes
On the SIP Trunk
i have checked the mentioned parameter and these parameter is already checked.
Deleting and reconfiguring the Sip Trunk does not solve the issue.
I`m getting all the time, at the specific traffic case the message 503 server unavailable.
At the cucm trace i can find the following,
15:24:50.202 |//SIP/SIPHandler/ccbId=0/scbId=0/findTrunkInfoByAddr: Cannot find the SIP Trunk with Name=10.16.2.30, Source Port=5060, IpAddress Type=0|1,100,220,1.548666^10.16.2.30^*
15:24:50.202 |//SIP/SIPHandler/ccbId=0/scbId=0/sip_stop_timer: type=SIP_TIMER_TRYING value=500 retries=6|1,100,220,1.548666^10.16.2.30^*
15:24:50.202 |//SIP/SIPHandler/ccbId=0/scbId=0/sip_stop_timer: type=SIP_TIMER_EXPIRES value=180000 retries=0|1,100,220,1.548666^10.16.2.30^*
15:24:50.202 |//SIP/SIPHandler/ccbId=0/scbId=0/sip_start_timer: type=SIP_TIMER_EXPIRES value=180000 retries=0|1,100,220,1.548666^10.16.2.30^*
15:24:50.202 |EnvProcessUdpHandler::handle_input - handle = 322|*^*^*
15:24:50.202 |EnvProcessUdpHandler::handle_input Status: 0, Id: 0|*^*^*
15:24:50.202 |//SIP/SIPUdp/wait_UdpDataInd: Incoming SIP UDP message size 504 from 10.16.2.30::
Why the system tries to find an Sip Trunk instead of routing the call at the SIP Phone 8961 with number 1903?