Most of the following open source PBX vendors were on hand at Digium Asterisk ... the KONNECT 600PL VoIP and landline phone and the 600P IP phone, which includes the 600PL's features minus a ...

An IP-PBX can be a dedicated piece of equipment from vendors such as Avaya or Cisco Systems. Solution providers can also integrate their own system using software such as the Asterisk open-source ...