[Serusers] aliases

Hello, I have a question. I have two users 1000 and 1001. I have two grandstream phones that I registered with those usernames. I have added aliases for them: serctl alias add 8000 sip:1000@mydomain.com serctl alias add 8000 sip:1001@mydomain.com When i try to call 8000 from a softphone both of the phones ring. However after the timer is out I get 408: Request Timeout error instead of going to voicemail. I have a user 8000 with voicemail configured. my voicemail is running on a different machine though. Any clues? I tried adding it to the location table but still the same issue. I just want my phones to ring together, and if no answer go to voicemail. If it's picked up, then it will ring all phones again, so someone else can take the second call.I would like to use aliases so I we can still call local extensions internaly. thanks in advance Srbo Cvetkovic | CityNet, Inc. srbo(a)city-net.com | Pittsburgh, PA voice: 412.481.5406 | fax: 412.431.1315