some carriers didnt like our UA

sip_profiles/sipinterface_1.xml

@@ -44,7 +44,7 @@
             <!--<param name="outbound-proxy" value="127.0.0.1"/>-->
             <!--<param name="sip-domain" value="sip.2600hz.com"/>-->
             <!--<param name="contact-user" value="sip.2600hz.com"/>-->
-            <param name="user-agent-string" value="http://www.2600hz.com"/>
+            <param name="user-agent-string" value="The 2600hz Project"/>
             <param name="enable-100rel" value="false"/>
             <param name="max-proceeding" value="1000"/>
             <!--<param name="max-calls" value="250"/>-->