iPECS eMG80 & eMG800 & UCP
Feature Description and Operation Manual Issue 1.6
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8.3 SIP Virtual Mobile Extension
Description
Virtual Mobile Extension (VMEX) is a proprietary regional FMC (Fixed Mobile Convergence)
implementation, which combines mobile service with SIP Call services and the iPECS system
functionality. Calls from the VMEX are directed from the Mobile Switching office to the carrier’s
SIP Call server and delivered to the iPECS system for routing. The iPECS system routes the call
internally or externally or activates a feature based on the digits received in the SIP “Invite”
message.
When the iPECS system receives a call for the VMEX, the call is directed to the VMEX over a SIP
trunk to the carrier’s SIP Call server, which routes the call to the Mobile switching office to the
VMEX. Support for SIP Subscribe and Notify provide status updates to other devices within the
iPECS system.
Operation
System
Conditions
Operation of VMEX is automatic when configured.
1. VMEX service is regional specific and functions only where the carrier service is
implemented in accordance with the iPECS system functionality.
2. The VMEX station must be virtually registered as a VMEX SIP station and employs
SIP for signaling.
3. A VoIP channel is required to support proper operation of the VMEX as with any SIP
Extension.
Programming
SYSTEM ID &
Web Admin.
Device Port Number Change Virtual Registration
SIP DATA
VMEX Station Data
Related Features
Hardware