...
"2012-02-15T12:12:09.971203Z":198464:SIP:ERR:swift.hubler.us:SipRouter-12:7f55351ea700:SipXProxy:"UrlMapping::loadMappings - No child Node for Mappings"
unknown Fatal Check dial plans files for validity. /etc/sipxpbx/forwardingrules.xml, mappingrules.xml, fallbackrules.xml, authrules.xml
"2012-02-15T12:12:23.239309Z":201137:HTTP:ERR:swift.hubler.us:AsynchMediaRelayRequestSender-14:7f553591a700:SipXProxy:"HttpMessage::get4 Call Forwarding in Unite Lite Receiving failed on persistent connection on try 0"
Can be ignored This happens every 30 seconds. Apparently message is benign User List Message. Change to debug level in sipXecs 4.6.
"2012-02-15T11:50:28.344501Z":24818:NAT:ERR:swift.hubler.us::7f5535a1b700:SipXProxy:"StunClient::getPublicIpAddress failed to obtain mapping from server stun.ezuce.com"
unknown Only critical if you use stun Be sure your system can resolve address to stun.ezuce.com. If you have DNS configured, be sure to set forwarders.
"2012-02-14T20:01:29.636218Z":398:SIP:ERR:one.3zuce.com:SipClientTcp216:7fec8a8d6700:SipXProxy:"SipClientWriteBufferSipClientTcp-216::writeMore OsSocket::write() returned -1, errno = 32"
unknown
...
"2012-02-15T14:27:43.469168Z":17520:HTTP:ERR:swift.hubler.us:OsTimer-10:7f0418585700:SipRegistrar:"HttpMessage::get4 Call Forwarding in Unite Lite socket to :80 not connected, retry 1 after 20ms"
*unknown