7. Integrating VoIP Phones and IP PBXs
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Network Topology
The diagram below illustrates a typical network topology for VoIP integration with
VidyoConferencing. Elements include VidyoPortal, VidyoRouter, VidyoGateway, an IP PBX, analog
POTS phones, VoIP soft phones, dedicated IP phones, VidyoDesktop, and VidyoRoom endpoints.
Connecting to VidyoConferences from VoIP Phones
If you are using a soft phone or IP phone that supports the ability to place calls directly using a SIP
dial string, you can call into a VidyoConference directly (without needing an IP PBX). The SIP dial
string must include three components:
The voice-only service prefix of the VidyoGateway.
The extension of the endpoint or meeting room you are calling.
The address of the VidyoGateway.
VidyoGateway
Firewall
NAT
IP PBX
Firewall
NAT
Public IP Space
Internet
Layer
3 Switch
DMZ IP Space
VidyoPortal
DMZ
Private IP Range
172.16.x.x
WAN
Vidyo
User
IP Phone
Softphone
Corporate LAN – Private IPs
10.x.x.x