DID is a service offered by telephone companies that enables callers to dial directly to an extension on a Private Branch Exchange (PBX) or packet voice system without the assistance of an operator or automated call attendant. This service makes use of DID trunks, which forward only the last three to five digits of a phone number to the PBX or router/gateway. In our the T1/E1 Gateway, you can use DID function like as bellow:
For example:
1. your company has phones extensions 82535300 to 82535329 in T1 or E1 line
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3. When a caller dials 82535301, extension 301 should ringwill ring. When extension 301 call out, caller id number 82535301 should will be send.
Note
- 2001 is a SIP Trunk connected to a PBX
- Phones extensions 82535300 to 82535329, the first four digits are the same, and the other digits are the phones extensions in PBX
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When a caller dials 82535301, our gateway would forward 301 to the PBX. The , then the PBX would then ring extension 301.
Step 2. Modify outgoing routing rule.
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