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New Member

Voice Quality Problems at PSTN Gateways


I have many voice quality problems on seperate Voice Gateways whish have E1 PRI ports and FXO ports . Problems are Echo , Absolute Silence , Poor voice quality and etc... , I have tried many different configurations , IOS versions , also opened several cases , but there are still problems.

Does anybody ave similar problems? or have solutions for these problems.

Best Regards...


Re: Voice Quality Problems at PSTN Gateways

You may want to look at the ecan option on the 12.2.13, 12.2.15 and 12.3 ios codes, you need to have med complexity to enable the echo-cancler

New Member

Re: Voice Quality Problems at PSTN Gateways

I use 12.2(15)T2 , and also med-complexity enabled yet , but problems are the same . And also you can not configure FXO ports like this unfortunately .

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