General
The remote extension feature is implemented as generic
extensions in the exchange. It is supported over the following signaling
systems and protocols:
- ISDN trunk
- Digital Private Network Signaling System (DPNSS)
- Digital Access Subscriber System (DASS)
- Multi-Frequency Compelled R2 (R2 MFC)
- H.323 trunk
- Signaling System 7 (SS7)
- SIP trunk (see separate Operation Directions Remote Extension over SIP)
One type of Remote extension is defined: Remote Extension, regardless if it is mobile or fix. The required license is however called Mobile-Extension. If the public trunk cannot convey any A-number, that is, identity for the remote extension, the PBX may require an authorization code.
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