H3C XE 200 IP, Руководство по эксплуатации

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Operation Manual – Feature
H3C XE 200/2000 IP PBX
Chapter 1 Number Substitution
1-3
Note:
z
Number substitution can be controlled globally or for a specific device. Refer to 1.3.3
“ Configuring Location-Based Number Substitution ” for details.
z
LS domain means differently with domain. Refer to Chapter 2.2 “Basic NAT/FW
Tunnel Traversal Configuration” of the “Location Server Configuration” module in
this manual for information about domain.
I. Calling number substitution policy
Calling number substitution functions to have a calling number presented in an
appropriate format at the called side depending on the geographical location of the
calling party to the called party.
1) When the calling device is inside the LS domain
When receiving a call from an intra-domain device, the system performs calling number
substitution depending on whether the country and area codes of the calling and
terminating devices are the same, as shown in the following table:
Table 1-2 Calling number substitution policy for intra–LS domain calling devices
Same country code? Same area code?
Substitute of the calling
number is…
Yes Yes Subscriber number
Yes No
Area code + subscriber
number
No No
Country code + area code
+ subscriber number
2) When the calling device is outside the LS domain
When receiving a call from a device outside the domain, the system does not perform
location-based calling number substitution.
II. Called number substitution policy
When the XE IP PBX processes an intra-LS domain call, it performs number analysis
before routing the call to the called gateway inside the LS domain.
In an inter-LS domain call, the terminating device can be a process server (PS), an
office gatekeeper/SIP server for example, an intra-LS domain gateway or an office
gateway. Depending on the type of the terminating device, the system adopts different
called number substitution policies.