HI All, Something weird has happened to my (*) setup. Setup: I'm using a Realtime-Driven (*) server for voicemail which has the knowledge of all mailbox users on the softswitch which is remote to this (*) box. Since that's all this box is used for, all I have in the sip.conf is the definition of a peer (tried friend as well) which is qualified by its IP address. This is where the calls come to the (*) box from when the call needs to access voicemail. Peer definition in sip.conf Looks something like this [POP] type=peer host=xxx.xxx.xxx.xxx <-- <I have the actual IP of the originating peer here> context=to-voicemail insecure=very disallow=all allow=ulaw dtmfmode=rfc2833 general part of sip.conf itself looks like [general] port = 5060 ; Port to bind to (SIP is 5060) bindaddr = 10.0.3.53 ; Address to bind to (all addresses on machine) externip = 60.xxx.xxx.xxx localnet = 10.0.3.0/255.255.255.0 nat=route disallow=all allow=ulaw then in extensions.conf I have, the definitions of extensions under 'to-voicemail" context. This was working like a champ but all of a sudden has stopped working. I basically just get back a "407 Proxy Authentication" message on my softswitch/proxy servers which I would think I shouldn't when I have a defined peer. It was quite happily printing out SIP debug messages which clearly stated "Found peer POP", now I don't see that. I didn't change anything so I'm not sure why this is happening. And even if it is, what I can do fix it? Thanks \R