[Asterisk-Users] Using Cisco AS5350 as pstn GW .. one-way audio problem

[micke at party.pp.se]

Hi all.

I have a strange problem, I've got a AS5350 hooked up to a telco using
two trunked E1's

The 5350 should only act as a GW to a sipproxyserver. 

THe thing is it seems to be only oneway audio?

There are no firewall at all, and the audio still only get one-way

When I call from pstn --> as5350 --> sip-sip-phone   I can here the
sip-phone  ,, but the sipphone cannot her the pstn-phone.

What could be the reason for this ?

/Mike