06-04-2018 11:51 AM - edited 03-01-2019 02:07 PM
Hi Cisco community;
I have an issue with some outbound Long distance calls with bad static when making calls. The user needs to hang up and dial again and get a good port usually. my doubt here is, how can I test the serial port for poor quality or some other errors could have, The gateway has a SIP trunk and I think it has a T1/PRI too (how can I confirm that). I'd like to have information of the good configuration and functionality before going to PSTN company and ask to check from their side.
I just check with sh log and validate the serial port for errors with sh interface serial x/x/x:x
what else can I do?
thanks
06-04-2018 11:58 AM
06-05-2018 08:57 AM
Hi Nipun thanks for your answer, i read this article: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/voice/cube_mgmt/configuration/xe-3s/cube-mgmt-xe-3s-book/voi-pcm-audio.pdf
to set up the PCM but is not clear to me, I don't understand: "voice PCM capture user-trigger-string start-string stop-string stream bitmap duration call-duration"
what are a start-string, stop-string, and stream bitmap? in an example is using numbers for start and stop (#132, #543) and an FF for stream bitmap
can you explain to me what is the reference for that numbers, and for the bitmap stream
Thanks
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