ISDN hangup cause codes provide information as to why a call has been terminated many are shared with SIP. The list of hangup cause codes below provides detailed information as to the underlying cause behind a call hangup: Code No. 0 This is... Read More
SIP Response Codes 1xx—Provisional Responses 100 Trying ExtendedThe search being performed may take a significant time so a forking proxy must send a 100 Trying response. 180 Ringing DestinationUser agent received INVITE, and is alerting user... Read More
How do I perform a Wireshark trace? If you have been asked to complete a wireshark trace this is because your reported fault needs further inspection from site, these are typically asked for when the report is call quality or transfer difficulties.... Read More