Trunk lines are the phone lines coming into the PBX (private branch exchange) from the service provider. This differentiates these incoming lines from extension lines that connect the PBX to individual telephones. As there are tipically fewer trunk lines than extension lines in an office, trunking saves cost.Trunk lines transmit voice and data in formats such as analog, T1, E1, ISDN or PRI.
With Enreach' PBX Trunking solution, service providers can add UC services to enterprises with premises-based IP PBXs.
By connecting our PBX Trunking to an installed PBX, businesses can use VoIP for all local and long distance calling needs.