Popular Articles
Using Wireshark
by Ben Logan Network Technician WIlkes Communications, Inc Wilkesboro, NC With voice quality issues, where you get the capture from is critical. Let's say there's a PBX at point A, switches at points B and C and the problematic phone is point D. ...
Using Diagrams to Design Call Flow
One of the best tools for getting ready to program the Protel LTS is a flow chart. Drawing call flow into a block diagram helps the system administrator to visualize the routing of calls, and it makes it easier to collaborate with the customer/end ...
10/17/2016 Manager Groups
The newest update to Protel LTS includes added functionality that enables PBX administrators to implement definable controls that restrict access to the “Spy” features (Listen, Whisper and Barge), and also to restrict access to call recordings. Here ...
Why upgrade to version 4?
The Protel LTS PBX application runs on Linux Ubuntu Server as its base operating system. Protel LTS version 3, first released in 2013, requires Linux Ubuntu 12.04. This version of Ubuntu reached end-of-life in June of 2017, and as of January 1, ...
Local SIP port assignments for IP phones
Perhaps the most common cause of problems with IP phones is inconsistent signalling communication between the end point (phone) and the PBX. The symptoms of this include: The phone won't register to its extension account on the PBX. BLF buttons on ...