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500 Server Internal ErrorVia: SIP/2.0/UDP and SIP/2.0 503 Service UnavailableVia: SIP/2.0/TCP

mohsin majeed
Level 2
Level 2

Hi,

 

A client setup was working fine before on the same configuration. The issue on the SIP trunk and came a week ago. In Saudia Arabia there are different telecom companies like Zain, Mobily and STC. This issue is only on the STC network when dialing a mobile number from cisco phone.

Problem when a call is made to any STC mobile number. It gives busy and after 7,8 tries, it finally goes and connect. Dialing to any Mobily or Zain network have no issues.

Regarding below description is have attached debugs for Successful and Unsuccessful call logs and Gateway configuration

Call on Zain network 058XXXXXXX is successful

Call on STC network 055XXXXXXX is unsuccessful

 

Need help

 

Regards,

2 Replies 2

Shadi Shami
Level 7
Level 7

replied to the other thread:

https://supportforums.cisco.com/discussion/12486626/500-server-internal-errorvia-sip20udp-and-sip20-503-service-unavailablevia

Thank you soooo much.

 

Issue resolved.