[SR-Users] I get no calls?

[gooly]

Hi,
I have registered my (Fritz!Box) ATA successfully registered on my 
account 8305234 at iptl.org but what is tried I never received a call?

Here is what I can see on 'my' web-page with you:
> "C.A. Schreiber" <sip:17772184364 at callcentric.com> 	non-local 	2012-09-14 14:59 	500 Server Internal Error
> "C.A. Schreiber" <sip:17772184364 at callcentric.com> 	non-local 	2012-09-14 14:59 	500 Server Internal Error
> "C.A. Schreiber" <sip:17772184364 at callcentric.com> 	non-local 	2012-09-14 14:59 	500 Server Internal Error
> "C.A. Schreiber" <sip:17772184364 at callcentric.com> 	non-local 	2012-09-14 14:58 	500 Server Internal Error
> "C.A. Schreiber" <sip:17772184364 at callcentric.com> 	non-local 	2012-09-14 14:56 	500 Server Internal Error
> "alles" <sip:192.168.0.201:5070 at 188.26.245.223:5060> 	non-local 	2012-09-10 13:45 	500 Server Internal Error
> "alles" <sip:192.168.0.201:5070 at 188.26.245.223:5060> 	non-local 	2012-09-10 13:45 	500 Server Internal Error
> "C.A. Schreiber" <sip:8305234 at iptel.org> 	on line 	2012-09-10 13:43 	500 Server Internal Error
> "C.A. Schreiber" <sip:8305234 at iptel.org> 	on line 	2012-09-10 13:43 	500 Server Internal Error
> "alles" <sip:192.168.0.201:5070 at 188.26.245.223:5060> 	non-local 	2012-09-10 13:40 	500 Server Internal Error
> "alles" <sip:192.168.0.201:5070 at 188.26.245.223:5060> 	non-local 	2012-09-10 13:40 	500 Server Internal Error
> "alles" <sip:192.168.0.201:5070 at 188.26.245.223:5060> 	non-local 	2012-09-10 13:39 	500 Server Internal Error
> "alles" <sip:192.168.0.201:5070 at 188.26.245.223:5060> 	non-local 	2012-09-10 13:39 	500 Server Internal Error
> "C.A. Schreiber" <sip:8305234 at iptel.org> 	on line 	2012-08-22 00:20 	500 Server Internal Error
> "C.A. Schreiber" <sip:8305234 at iptel.org> 	on line 	2012-08-22 00:19 	500 Server Internal Error



Please can you tell me what I have to do to be able to receive Voip-Calls?

Regards,
Carl