Com.X Administrator Guide
Page 130
3.12.11.3 Simple partitioned DID routing:
If DIDs are provided by the telco, the use of inbound FlexPaths are unnecessary and,
provided the extension numbers created for each company matches the DIDs
provided over by the Telco, calls will automatically route to the correct extensions.
Scenario:
DID ranges routed by the Telco as follows:
Company A: 5559000 – 5559049 -> ports d1 and d2
Company B: 5559050 - 5559099 -> ports d3 and d4
Telco communicates the last 4 digits of DID across channels during call setup.
Configuration:
Creating extensions 9000 – 9049 for Company A and 9050 – 9099 for Company B
assigned to the appropriate FXS and SIP ports will result in automatic call routing to
the correct extensions for incoming calls.
3.12.11.4 Trunk to Trunk gateway
Scenario:
A company has a head office in a major city, and a remote office in another city. The
company has an agreement with an internet connectivity provider for a high quality IP
link between the two offices. The company requires a PBX system at the head office,
with internal extensions at both office locations, the two offices SIP trunks and PSTN
trunks provided for call routing at the head office location.
Configuration:
Both the head office and the branch office are provided with Com.X units.
Extensions:
•
Head office extensions configured as 101 – 105
•
Branch office extensions configured as 201 – 205
Sip trunk configuration:
•
Head office SIP trunk configured as provider
•
Branch office SIP trunk configured to register with head office
•
Ensure that Proxy, NAT, connection qualification and codec selection options
are configured appropriately.
Outbound route configuration:
•
Head office outbound route routes calls to branch extensions across the SIP
trunk
•
Head office outbound route routes all calls to PSTN
•
Branch office outbound route routes all calls (including calls to head office
extensions) to head office across the SIP trunk
FlexPath:
•
Head office configured with a FlexPath that places calls originating from the
SIP trunk either internally or routes them trunk-to-trunk to the PSTN outbound
route.
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