3Com VCX V7122, Руководство пользователя

Страница: 91 / 488

V7122 Gateway User Guide
91
ƒ For IP Æ Tel calls, when the destination is busy, and release reason #17 is issued or for
other call releases that issue the default release reason (#3). See ‘DefaultReleaseCause’
in
Table 41 .
The reasons for alternative routing option for Tel
Æ
IP calls only apply when Proxy
isn’t used.
To configure the reasons for alternative routing:
1
Open the ‘Reasons for Alternative Routing’ screen ( Protocol Management menu >
Routing Tables submenu > Reasons for Alternative Routing option); the ‘Reasons for
Alternative Routing’ screen is displayed.
Figure 32
Reasons for Alternative Routing Screen
2
In the ‘IP to Tel Reasons’ table, from the drop-down list select up to 4 different call failure
reasons that invoke an alternative IP to Tel routing.
3
In the ‘Tel to IP Reasons’ table, from the drop-down list select up to 4 different call failure
reasons that invoke an alternative Tel to IP routing.
4
Click the Submit button to save your changes.
5
To save the changes so they are available after a power fail, see Saving Configuration .
Release Cause Mapping
The Release Cause Mapping screen enables the gateway to map (up to 12) different SIP
Responses to Q.850 Release Causes and vice versa, thereby overriding the hard-coded
mapping mechanism (described in
1
Appendix H: Release Reason Mapping).
To configure the release cause mapping:
1
Open the ‘Release Cause Mapping’ screen ( Protocol Management menu > Routing
Tables submenu > Release Cause Mapping option); the ‘Release Cause Mapping’
screen is displayed.