I have three sites AA, EV, and BE. From AA I call the receptionist in EV and ask her to transfer me to a number back in AA, I will get one way audio after the call setup. Calling the extension directly is fine. I do not have MTP checked on the trunk, nor will I due to issue we have seen. I have H232 gateways, and have the gateway configured with the usual voice rtp send-rcv and have bound tha address to the interface. Our WAN links are totally segregated from data, and all have plenty of bandwidth. We use G.711. Any help would be great.
