Hello
Thanks for your quick reply krzykat. While looking for a solution I've found one of a2billing user facing the same problem. On reply for your answer I would say in general settings I've had anonymous sip calls as yes coz my wife calls me with her voipstunt a/c.
Ok now look in to it
http://forum.asterisk2billing.org/viewt ... 938846d917
Thats what exactly what happening in my case. but as per the solution that svetur gave I couldn't quit get it coz I've done it quit a few time on previous version of trixbox with braincoral but got stuck with trixbox 2.0 with brain coral.
Thanks for your support
Kunal