Phones Ring but NO VOICE - complete silence

[freenesss]

My current setup is as follows

PBX to VOIP routers - WAN - VOIP router to PBX

Calls are getting connected and the phone rings at either site, when someone picks the phone up there is just silence.

any suggestions?

Thanks in advance for any help

[gogasca]

can u check the routing any acl, firewall,...?

[Peterson Cristovam]

Hello

Yes, look the routing rules (acl, firewall...) all that can to block the rtp.

The RTP and signaling protocol, use differente ports.

Thx

Peterson

[freenesss]

There is full routing between the 2 routers accross the WAN, there are also no firewalls in place or ACL's on any router interfaces.

is there anything else i should be looking at, or any other possible causes to this problem?

[Peterson Cristovam]

Send us the configuration both routers.

What is the codec utilized?

[freenesss]

codec is g729

complexity HIGH

configs are attached

thanks for the help

[Peterson Cristovam]

Try to create a voice class codec

Example:

(config)#voice class codec 1

(config-xx)#codec preference 1 g729r8

(config-xx)#codec preference 2 g729br8

On both routers and apply this voice class on dial-peer voip

example:

dial-peer voice x voip

voice-class codec 1

So, on dial-peer voip put the command:

incoming call .T

Example

dial-peer voice x voip

incoming call .T

Thx

Peterson