Hi I am having real problems with remote extensions. I have been trying stun and the sip proxy manager, but to no avail. I am able to register, but not able to get any audio. My remote extension is a Cisco spa504g. The symptoms are the same whether I used Stun or the sip proxy manager - registered, but no audio. On the server side i see the following: 11:12:35.376 [MS105000] C:5.2: No RTP packets were received The PBX side firewall has the following ports opened: 5060-5062 - Sip 5090 - Tunnel Question do I need to enable RTP? I thought the SIP proxy manager / stun handled this?