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Intermittent one way audio - CME -SIP Trunk

shiblyibrahim
Level 3
Level 3

Hey Guys,

We are experiencing intermittent one way audios. So to verifiy for evey cal show voip rtp connection was used.

By this we found all the one way audio was caused by only one IP address and the good calls have a different IP.

Has anyone experienced this, if so what was the solution.

This is the output

oIP RTP active connections OK CALL

No. CallId     dstCallId  LocalRTP RmtRTP LocalIP           RemoteIP                              

1     24         23         16386    58756  192.168.2.100  91.151.8.181 

VoIP RTP active connections OK CALL

No. CallId     dstCallId  LocalRTP RmtRTP LocalIP          RemoteIP                              

1     45         44         16388    50644  192.168.2.100   91.151.2.133 

VoIP RTP active connections NOK CALL

No. CallId     dstCallId  LocalRTP RmtRTP LocalIP    RemoteIP                              

1     54         53         16396    50954  192.168.2.100   91.151.8.146

The call in red gives issues.

Please rate the post Shibly Ibrahim
2 Replies 2

jeremiah88
Level 4
Level 4

One way audio is almost always a network routing issue. The one ip involved has a routing issue with the other ip phone sub nets

Sent from Cisco Technical Support iPhone App

Thanks Jeremia, do you know how I could resolve this. I have contact my SP to see if we can get that particular IP address banned or so.

Please rate the post Shibly Ibrahim
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