Hi taitan, Firstly, thanks for your quick answer. The "Very Nice Sip Registrar/Proxy Server" is our SIP provider so we can't deal without it. The fact is that i don't understand why using the same branch is causing the problem while previous versions of BREKEKE SIP Server deals with the scenario ...

1. Brekeke Product Name and version: Brekeke SIP Server version 2.4.8.6/286.3 2. Java version: Java 6 3. OS type and the version: Microsoft Windows XP SP3 4. UA (phone), gateway or other hardware/software involved: Asterisk, Grandstream. 5. Select your network pattern from http://www.brekeke-sip.com ...