Talkswitch CT.TS005.002606 - Manual (Page 20)

E V E R Y C A L L C O U N T S 1 9
SERVICE PROVIDER VOIP NETWORK
Using a service provider VoIP network requires at least one VoIP-enabled
TalkSwitch unit. The service provider acts as the SIP server. The service provider
assigns the VoIP numbers and VoIP configuration parameters.
For example, the following illustration shows a service provider VoIP network.
Figure 4: Service provider VoIP network
To reach an outside party, the user dials the line hunt group number associated
with the service provider profile, and then dials the phone number. The
TalkSwitch unit routes the call over the Internet to the service provider. If the
outside party doesn’t use the same service provider, they are connected over the
standard telephone network. If the outside party does use the same service
provider, they are connected over the Internet.
To reach a local extension, an outside party dials the VoIP number that was
assigned to the TalkSwitch system by the service provider. The call is routed
through the telephone network to the service provider. The service provider
routes the call over the Internet to the TalkSwitch system, which directs the call
to the local extension.
Before proceeding, ensure you have:
• Connected the TalkSwitch system at each location to a network (see page 3).
• Configured local IP addresses (page 4), and public IP addresses if required.
• Configured the router (page 7).