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Internal Sip Trunk 404


eduardo

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Hi All,


 


we have configured a SIP trunk between a Cisco Call Manager and Swyx. If we make a call from Swyx, it goes through to Cisco no problem. But when a call is made from Cisco to Swyx, a status 404 not found is returned from the Swyx server. No SIP Registration is required. We've tried all sorts of number formatting but no joy.


 


Here is the wireshark capture from Swyx to Cisco, with the IPs replaced by the names:


Source  -  Destination  Info


1. SwyxServer  -  CiscoServer  INVITE: sip:[full international number]@CiscoServer


2. CiscoServer  -  SwyxServer  Status: 100 Trying


3. CiscoServer  -  SwyxServer  SIP/SDF Status: 200 OK


 


SIP header message in 1. shows


- To: <[full international number]@CiscoServer>


- From: "User Full Name" <sip:SwyxServer> 


 


In the From, no number is mentioned, could this be an issue in the settings and so the reverse as shown below wouldn't work?


 


Here is the wireshark capture from Cisco to Swyx, with the IPs replaced by the names:


Source  -  Destination  Info


5. CiscoServer  -  SwyxServer  Request: INVITE sip:[full international number]@SwyxServer:65002


6. SwyxServer  -  CiscoServer  Status: 404 Not Found


 


SIP header message in 5. shows


- To: <[full international number]@SwyxServer>


- From: <[full international number]@CiscoServer>


 


Thanks for any hints in this matter.


 


Best Regards.


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Thanks Florian for your suggestion. Its something we tried too, but itself didn't bring any results. 


 


In the end, it was down to the "default realm for SIP devices settings". We used the hostname rather than the IP address. Once this was changed to IP and the server restarted, we were able to receive calls. 


 


Best,


Eddie


 


 


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  • 2 months later...

Hey eduardo,


i'm trying to establish a SIP Trunk between our Swyx and a Cisco Callmanager. The Trunk not registers. When I Whireshark the Traffic, I see the Request: REGISTER, the Callmanager sends an Status 100: trying and then an Status: 500 Internal Server Error.


Did you create an CustomProviderProfiles.config-File? How did you configure the Trunk?


 


Thanks for your help!


Best, Filip


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