Stage 12: Testing outbound calls

Arrange for an application to generate an outbound call, and monitor the SS7 message as before by entering ss7view –message –t. Perform the outbound call.

If it works, the display will look similar to below:

13:49:03.918:0383:                                             <<---------- SL_CALL_SETUP_REQ
13:49:03.924:0383:              <<---------- IAM/ISUP_SETUP[624185]
13:49:03.947:0383:          ACM/ISUP_PROCEED ---------->>
.......
13:49:05.879:0383:          ANM/ISUP_SETUP ---------->>
13:49:05.879:0383:                           SL_CALL_SETUP_CNF [SL_REPLY_SUCCESS] ---------->>
.......
13:49:10.110:0383:                                             <<---------- SL_CALL_TERMINATE_REQ
13:49:10.110:0383:              <<---------- REL/ISUP_RELEASE[Cause:CSV_NORMALCALLCLR]
13:49:10.127:0383:          RLC/ISUP_RELEASE ---------->>
13:49:10.127:0383:                           SL_CALL_TERMINATE_CNF [SL_REPLY_SUCCESS] ---------->>

If not, select from the following:

Status	Action
No message are displayed	Go to stage 12a
The first line containing SL_CALL_SETUP_REQ is present but the second is not, or is not the same as containing IAM/ISUP_SETUP	Go to stage 12b
The message format matches, but the destination was not contacted (did not ring)	Verify that the outbound called number is correct for the device you are trying to contact.

Stage 12a: Check the returned value from the application's Makecall instruction

You might find the following problems:

The MakeCall request is rejected due to bad numbers or parameters. Check all the parameters. Try to simplify the tags or parameters.
No Outbound lines available. Check that the relevant circuits (both local and remote) are in service. The remote end can be checked using the ss7view –circuit command.

Stage 12b: The network is rejecting the call

Look at the output from ss7view –message for a REL/ISUP RELEASE going from the network to Blueworx Voice Response (left to right). It contains a cause code in square brackets—this is the reason the call is being rejected. Use the ss7view –cause <name> to translate the cause code. For example ss7view –cause CSV_NORMALCALLCLR returns "Normal call, clearance".