VoIP
-
Mitel MiVoice Business: Understanding Class of Restriction
Class of restriction (COR) is an important feature on MiVoice controllers for protection and control over what calls can access an outgoing trunk group. COR can be split into two parts, the class of restriction group themselves, and its members which are defined by an Class of Restriction number. Confusion can occur since class of…
-
Capturing a SIP trace / PCAP on a Mitel Controller
Capturing a SIP trace can help in diagnosing issues with SIP communications on a Mitel controller. Log into the System Administration Tool and and navigate to Maitenance and Diagnostics, Maintenance Commands. In the command box, type SIP TCPDUMP ON At this point, run any test calls that you need to capture into a PCAP file.…
-
Connecting Power over Ethernet (PoE) Devices to Wireless
Typically in the average office there is ethernet ran to every desk providing a direct connection to whatever device may sit on the other end, including power to phones. With most people now working from home due to the pandemic ethernet may not be readily so available, so what can be done to provide a…
-
Poor ISDN call quality – Mitel / MiVoice 3300
We were tasked to look into a MiVoice Business controller in the UK that had been recently rebuilt from backup. Incoming or outgoing calls to the controller turned any calls into almost inaudiable noise. Checking the ISDN forms against best practice it looked like nothing had been missed or mis-set, it was restored from a…