AudioCodes Mediant 3000, User Manual

Page: 342 / 872

User's Manual 342 Document #: LTRT-89729
Mediant 3000
23.5 Configuring Redirect Number IP to Tel
You can configure rules for manipulating the redirect number received in the incoming
message:

IP-to-Tel redirect number manipulation: You can manipulate the value of the received
SIP Diversion, Resource-Priority, or History-Info headers, which is then added to the
Redirecting Number Information Element (IE) in the ISDN Setup message sent to the
Tel side. This also includes the reason for the call redirection. This is configured in the
Redirect Number IP > Tel table.

Tel-to-IP redirect number manipulation: You can manipulate the prefix of the redirect
number, received from the Tel side, in the outgoing SIP Diversion, Resource-Priority,
or History-Info headers sent to the IP side. This is configured in the Redirect Number
Tel > IP table.
Configuration of redirect number manipulation rules includes two areas:

Rule: Defines the matching characteristics of an incoming call (e.g., prefix of redirect
number).

Action: Defines the action that is done if the incoming call matches the characteristics
of the rule (e.g., removes a user-defined number of digits from the left of the redirect
number).
The device searches the table from top to bottom for the first rule that matches the
characteristics of the incoming call. If it finds a matching rule, it applies the manipulation
configured for that rule.
Notes:
•
If the device copies the received destination number to the outgoing SIP
redirect number (enabled by the CopyDest2RedirectNumber parameter),
then no redirect number Tel-to-IP manipulation is done.
•
The manipulation rules are done in the following order: Stripped Digits
From Left, Stripped Digits From Right, Number of Digits to Leave, Prefix
to Add, and then Suffix to Add.
•
The Redirect Prefix parameter is used before it is manipulated.
•
The redirect number manipulation tables can also be configured using
the ini file:
- Redirect Number IP to Tel table: RedirectNumberMapIp2Tel (ini)
- Redirect Number Tel to IP table: RedirectNumberMapTel2Ip (ini)