Ghost Calls SIPvicious was created as an inventory tool for IT Admins to manage SIP devices evolving to a scammer tool used...
Problems with DTMF If you are reporting that your IVR is intermittently failing when pressing the menu selections of your Auto Attendant, it...
SIP Error Response Codes The important codes 401 Unauthorized On our network, the “401 Unauthorized” relates to Registration only and is part of our...
Trace – HOMER We use HOMER to extend packet captures between our network including the ability to view encrypted packets sent over TLS...
Why can’t I register my VoIP device? Firewall’s are a common cause of SIP registration failure with your VoIP device where the firewall blocks incoming traffic required...
Yealink Diagnostics Yealink provide two diagnostic tools to help our support team diagnose connectivity issues within your network: local log Syslog which...