VoIP as an alternative to expensive switchboards. In its favor, VoIP is built on a series of free source code programs. They switch between different VoIP accounts (carriers).
The google OBi2182 is a 12 line business-class color IP phone with support for 48 lines, up to six google accounts and OBiTALK VoIP Service. The Polycom VVX 101 is a one-line SIP phone for a home office or shared / common areas delivering enterprise grade sound quality. PoS-Phone registers the SIP extension of the sales terminal in its VOIP control unit.
We will explain both concepts using, for this, an example of a PBX and another of VoIP Centrex. VoIP Channels: 30 channels via SIP for each E1 / T1 link. The EBS-E1 family with SIP channels proposes adding high availability to the robustness of CTI solutions with the IP network.
How does VoIP differ from a virtual PBX? A very good performance voip gateway can be set up using Asterisk technology with a properly equipped server with TDM cards. There are also multiple gateway manufacturers on the market such as Cisco, Quintum, Lancom, Mediatrix, Patton Vegastream. Possibility of connecting a traditional switchboard (digital analog) to VoIP for access to low cost operators.
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