RTP payload - all FFFFFFFF`s

[darijohorvat]

Hi!

I have one-way-voice issues on some calls, originating on two different gtw`s (both MGCP, E1)!

Let say, one of ten calls experience this problem - call is one-way-voice - from ip phone to gtw ok, but from gtw to ip phone there is only silence! when call is retryed everything is ok!

Interesting is that rtp payload in packets from gtw to phone consist of all FFFFF`s, and there is no lost of packets!

Here is wireshark capture, 10.250.230.6 is IP of a gateway. Can somebody help please?

thx

[network.operation]

Hey... how did you resolve this issue? I am facing the same.

[darijohorvat]

Hi

It was resolved by contacting provider.

They had problem on some circuits, but I never received detailed description. For me, it was enough that problem have gone away

[network.operation]

THank you. Who was the provider? Device vendor or Network/Link service provider.

Cisco or any ISP.

Thanks

Satya.

[darijohorvat]

Network/Link service provider.

Good luck!

br

Darijo