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SPA 400 answer "400 bad request"

Hello,

I have faced strange behavior of Cisco/Linksys PSTN gateway - SPA400.

SPA400 answers "400 Bad Request" to some INVITE requests.

I know that "400 Bad Request" usually means wrong sip syntax but I can't find what is wrong exactly.

I've attached samples if sip requests (INVITE and answer on it) and logs of SPA400 for successful (Good) and failed (BAD) call.

192.168.192.81 - IP of SPA-400

78127405999 - destination number

192.168.192.95 - proxy server

Could you please help my to find what is wrong in these calls.

Thank you.

1 REPLY
Cisco Employee

Re: SPA 400 answer "400 bad request"

Dear Sir;

I suggest you contact our support center for this issue. Support center telephone numbers are located on the break&fix support section on our community.

Regards
Alberto

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