User`s manual

SIP User's Manual 422 Document #: LTRT-83303
Mediant 1000 & Mediant 600
4. At Device B, route IP-to-PSTN calls to Trunk Group ID according to the first digit of the
called number:
• PSTNPrefix = 1,1
• PSTNPrefix = 2,2
• PSTNPrefix = 3,4
• PSTNPrefix = 4,4
5. At Device B, remove the first digit from each IP-to-PSTN number before it is used in
an outgoing call:
NumberMapIP2Tel = *,1
7.12 Proxy or Registrar Registration Example
Below is an example of Proxy and Registrar Registration:
REGISTER sip:servername SIP/2.0
VIA: SIP/2.0/UDP 212.179.22.229;branch=z9hG4bRaC7AU234
From: <sip:GWRegistrationName@sipgatewayname>;tag=1c29347
To: <sip:GWRegistrationName@sipgatewayname>
Call-ID: 10453@212.179.22.229
Seq: 1 REGISTER
Expires: 3600
Contact: sip:GWRegistrationName@212.179.22.229
Content-Length: 0
The ‘servername’ string is defined according to the following rules:
 The "servername" is equal to "RegistrarName" if configured. The "RegistrarName" can
be any string.
 Otherwise, the "servername" is equal to "RegistrarIP" (either FQDN or numerical IP
address), if configured.
 Otherwise, the "servername" is equal to "ProxyName" if configured. The "ProxyName"
can be any string.
 Otherwise, the "servername" is equal to "ProxyIP" (either FQDN or numerical IP
address).
The parameter GWRegistrationName can be any string. This parameter is used only if
registration is per device. If the parameter is not defined, the parameter UserName is used
instead. If the registration is per endpoint, the endpoint phone number is used.
The 'sipgatewayname' parameter (defined in the ini file or Web interface) can be any string.
Some Proxy servers require that the 'sipgatewayname' (in REGISTER messages) is set
equal to the Registrar / Proxy IP address or to the Registrar / Proxy domain name. The
'sipgatewayname' parameter can be overwritten by the
TrunkGroupSettings_GatewayName value if the TrunkGroupSettings_RegistrationMode is
set to 'Per Endpoint'.