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VoIP traffic through FWSM (Teardown UDP connection)

We have a call manager express behind a FWSM and softswitch Huawei NGN at the other end.

We have allowed the (ICMP & IP) traffic to pass in the inbound and outbound interface, ping between the 2 devices is successfull.

When we try to make a call, it gives oneway voice.

the CME device cannot hear but the softswitch side hear.

please, find here attached the output of the logging of the FWSM.

Can anyone please help us?

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