PBX stands for Private Branch Exchange, which is a private telephone network used within a company. Users of the PBX phone system share a number of outside lines for making external phone calls.
A PBX connects the internal telephones within a business and also connects them to the public switched telephone network (PSTN), VoIP Providers and SIP Trunks.
One of the latest tendencies in PBX phone system development is the VoIP PBX, also known as IP PBX, which uses the Internet Protocol to transmit calls. Nowadays, there are four different PBX phone system options:
Announce Only Extensions
Call Hunting
IVR & Auto Attendant
Scheduling
Find Me/Follow Me
Direct Extension Dial
Custom SIP Subdomain
Voicemail
Music on Hold
Call Transfer
Online Call History
Call Waiting
Admin Control Panel
User Control Panel
Conference Rooms
3 and 4 Digit Extensions
SIP Extensions
3 Way Calling
Use Any SIP VOIP Phones
Unlimited Users/Extensions
Call Queues
