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
Do a "show isdn status" to check if there is a PRI in use on the ISR. In terms of voice quality, you need a PCM or PCAP for that. Additionally if you are using a PRI you can do a "show controller t1" and check to see if your circuits are running clean of any sort of errors.
Nipun Singh Raghav "We cannot solve our problems with the same thinking we used when we created them"
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