Teletronics Enterprise SIP Server Manual do Utilizador descarregar pdf (Página 22)

TELETRONICS INTERNA

TIONAL, INC.

21 Enterprise SIP Server Tutorial – Dial Plan

s-tut-dp1.51-041228

4. Routing

4.1. Setting the Destination SIP-URI

The callee’s SIP-URI can be changed in the To: header field. During a session, routing is based

on the SIP-URI shown in the To: header field.

4.1.1. Setting the callee’s SIP-URI as “sip:user@domain” (when callee is a “user”)

Matching Patterns

Deploy Patterns

$request=^INVITE

to=sip:user@

to=sip:user@domain

4.1.2. Setting the callee’s Domain as “gw2” (when the callee’s domain is “gw1”)

Matching Patterns

Deploy Patterns

$request=^INVITE

to=sip:(.+)@gw1[ >;]*

to=sip:%1@gw2

4.2. Setting the Destination Address

The callee’s address is set in the handling variable $target. Routing will occur to the address

set in the $target. When both $target and To: header field are set in the Deploy Patterns,

the value in $target will be used for routing.

4.2.1. Setting the destination address as “pbx”. (all calls)

Matching Patterns

Deploy Patterns

$request=^INVITE

$target=pbx

4.2.2. Setting the destination address as 192.168.0.2 . (When the callee isn’t

registered with the database)

Matching Patterns

Deploy Patterns

$request=^INVITE

$registered=false

$target=192.168.0.2

5. Error Exit

Responses for error exit are set in the handling variable $action. Depending on the value

$action is given, the relevant response code will be sent to the caller.

Examples of Response Codes_

400 = Bad Request

401 = Unauthorized

403 = Forbidden

404 = Not Found (destination cannot be found)

406 = Not Acceptable

486 = Busy Here (busy signal)

603 = Decline (refused, rejected)

5.2.1. If a MESSAGE request is received, return the code 400 (bad request)

Matching Patterns

Deploy Patterns

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