We have one way audio issue. When I Receive/Make a call from the IP phone nobody can hear me but I can hear the other end very well. I know most of the time this is an routing misconfiguration but I don't seem to be able to figure out where the problem is. Any help would be greately appreciated. I am uploading the config for Switch where the phone is contected and the GW contected to the PSTN.
GateWay (C3845-SPSERVICESK9-M), Version 12.4(15)T1
Access Switch (C3750-IPBASEK9-M), Version 12.2(25)SEE2