The ISDN services or features that can be requested at call setup time when using this trunk group. In addition to predefined services or features that can be received on a call by call basis, user-defined service types can be used.
Valid Entry |
Usage |
0 |
Feature |
1 |
Service |
2 |
Incoming |
3 |
Outgoing |
other |
Any services or features that are not explicitly specified |