[Serusers] Hosting Multiple Domains

Hello All. I have an ATA from a company called WorldAccxx and I'm trying to get it working with ser. ser is serving multiple domains right now. My question is this; This particular ATA never sends <user>(a)domain.com when registering. Instead it always seems to send <user>(a)11.11.11.11 so is there a way to associate this ATA with a particular served domain? Also, can anyone tell me if this ATA seems to be RFC3261 compliant? It seems to me that if I configure the ATA to use a SIP proxy of sip.mycompany.com and it sends the REGISTER message as <user>(a)some.ip.address then something is wrong. Regards, Paul _______________________________ Do you Yahoo!? Declare Yourself - Register online to vote today! http://vote.yahoo.com