Which Location And Unit Should Be The Sip Server; Assigning Voip Numbers To Each Voip Location - Talkswitch CT.TS005.003902 User Manual

A TalkSwitch unit has a built-in SIP server to manage a VoIP network.
Though every networked TalkSwitch unit has the capability, you must
designate only one TalkSwitch unit in a network as the SIP server.
For VoIP calls made through a VoIP service provider, the service provider
will act as the SIP server.

Which location and unit should be the SIP server?

Any TalkSwitch unit on the network can be designated as the SIP server.
To simplify network operation and reliability, we recommend that you choose
a location that has a static, rather than a dynamic public IP address. A static
public IP address does not change, providing a consistent connection address
for each location to communicate with the SIP server.
If you do not have a static IP address, you can obtain a Fully Qualified
Domain Name (FQDN) from a Dynamic Domain Name Service (DDNS) provider.
A DDNS matches your dynamic IP addresses to your FQDN, so that your
TalkSwitch VoIP network operation is not affected by IP address changes.
One DDNS provider is DynDNS.
Visit http://www.dyndns.com/services/dns/dyndns/ for more
information.
Configuring a TalkSwitch unit to act as the SIP server is described in Step 3
of VoIP Configuration on page 194.
Example: Building on the previous example, the TalkSwitch system in the
San Francisco office is designated as the SIP server. When a location initiates
a call, the TalkSwitch in San Francisco will resolve the destination address
for the call and coordinate a connection to route the call to its destination.

Assigning VoIP numbers to each VoIP location

You can now assign VoIP numbers to locations in your VoIP network.
A TalkSwitch unit with four VoIP lines can support up to 12 VoIP numbers. A
TalkSwitch unit with eight VoIP lines can support 24 VoIP numbers. Unique
call handling can be configured for each VoIP number. VoIP numbers can be
three or more digits in length.
Each VoIP number in a multi-location network must be unique.
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