Operation Manual – Feature
H3C XE 200/2000 IP PBX
Chapter 1 Number Substitution
1-2
The following is how location-based number substitution works, taking call routing
between voice gateways with different area codes for example:
z
A voice gateway sends a call to the XE IP PBX.
z
The XE IP PBX analyzes the received number, identifying the called gateway.
z
Based on the analysis, the XE IP PBX adds the corresponding area code before
the calling subscriber number, and removes the area code from the called
number.
z
After completing the number substitution operation, the XE IP PBX routes the call.
This example assumes that the two voice gateways use the same country code.
1.3.1 Dialing with Location-Based Number Substitution
In a VoIP network set up using the XE IP PBX, you can dial as you would in a PSTN
network.
When location-based number substitution applies, which dial method is available
depends on whether the calling and called parties are using the same country code and
area code.
Table 1-1
Available dial methods when location-based number substitution applies
Same country code?
Same area code?
Dial…
Yes Yes
Subscriber number
Area code + subscriber
number
Country code + area code
+ subscriber number
Yes No
Area code + subscriber
number
Country code + area code
+ subscriber number
No No
Country code + area code
+ subscriber number
1.3.2 Location-Based Number Substitution Policy
In location-based approach, the system analyzes information about the calling and
called parties before performing number substitution, to recognize device type and
whether the device is in the location server (LS) domain (the range that is administered
by the LS), and to identify whether the devices are administered and whether they are
in the same LS domain.
Summary of Contents for XE 200/2000 IP
Page 7: ...Basic Configuration ...
Page 42: ...Process Server Configuration ...
Page 82: ...Location Server Configuration ...
Page 182: ...Feature ...
Page 259: ...System Management ...
Page 341: ...IP Performance and Application ...
Page 349: ...Media Server ...
Page 360: ...Call Services ...
Page 507: ...Appendix A ...
Page 511: ...Appendix B ...