Table 6-28 SIP Trunk Configuration Settings
Field
Description
Trunk Identifier
A unique number consisting of digits only. Usually give the
phone number issued by the ITSP for consistency.
Description
Arbitrary description information.
Auth. Name
Specify the name for authentication if different to the Trunk
Identifier, 64 characters maximum.
IP PBX do not accept the following characters: `;~!#$%^*()+|-
=\{}[]" ',/<>.
Auth. Password
Give the password used for authentication on the remote SIP
proxy or registrar. Usually this is given by the ITSP, 20 characters
maximum.
Dynamic Peer
Select if the trunk is a passive trunk which means the
registration will be from a dynamic remote peer. Typical
application is to accept registration from an IP PBX at a remote
site with dynamic IP address. Once the remote IP PBX registers,
calls from local to remote can be made reversely over the trunk.
SIP Proxy IP
Specify IP address (or fully qualified domain name) and UDP port
of the remote SIP proxy, which usually refer to the SIP server on
the ITSP side.
SIP Proxy Port
SIP Domain
Specify the SIP domain used by the proxy and registrar. If not
specified, IP address will be used as the domain by default.
Registration Required
Select if registration to a registrar is required to activate the
trunk. This is true for a remote IP PBX or an ITSP account,
however, may be not required in case of a SIP gateway.
SIP Registrar IP
Specify IP address (or fully qualified domain name) and UDP port
of the remote SIP registrar, which usually refer to the SIP server
on the ITSP side (same as proxy).
SIP Registrar Port
Language
Preferred language for system instructions heard from the trunk.
DID Type
DID means direct inward dialing (also called DDI in Europe).
Select a preferred type, None DID, Extension DID, DID by Number
DID by Privilege or Centrex DID from the list and then enter
configuration in DID Prefix and DID Stripping to have the
incoming calls directed to the corresponding trunk.
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