SIP stands for “Session Initiation Protocol“, which is the industry standard for Voice over IP (VoIP) calling.

It defines the way that VoIP phones should connect to each other to signal calls, send audio, request transfers, hold a call, etc.

Almost any device that supports SIP is compatible with the TELTEL PTY LTD network, though there are some minor variations in the standard that could cause issues with some devices.

All handsets provided by TELTEL PTY LTD are tested and confirmed to be fully compatible with our services.