'Ip telephone framework' presentation slideshows

What is Private Branch Exchange? And what are its advantages?

Private Branch Exchange or otherwise known as PBX, is a private network utilized inside an organization or an association. The individuals utilizing PBX telephone system can convey inside their organization and the outside world, utilizing diverse communication stations like Voice over IP, ISDN or analog. PBX additionally permits you to have a larger number of telephones than physical telephone lines (PTSN) and permits free calls between clients.

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