This article describes the steps necessary to configure the SBC Edge so that a call may be placed from a SIP phone through the SBC Edge to an ISDN endpoint as depicted by the following call flow:
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SBC Edge Configuration
SIP Local Registrar Table Configuration
- In the WebUI, click the Settings tab.
- In the left navigation pane, go to SIP > Local Registrars
- Add a new SIP Local Registrar.
- In the WebUI, click the Settings tab.
- In the left navigation pane, go to Transformation
- Add a new Transformation Table.
Add two entries to the new Transformation Table as show below.
Transformation Table Configuration
Call Routing Table Configuration
- In the WebUI, click the Settings tab.
- In the left navigation pane, go to Call Routing Table
- Add a new Call Routing Table.
Add an entryto the new Call Routing Table and configure it as shown below.
Call Routing Table Configuration
SIP Signaling Group Configuration
- In the WebUI, click the Settings tab.
- In the left navigation pane, go to Signaling Groups.
Add a new SIP Signaling Group and configure it as shown below.
SIP Signaling Group Configuration
ISDN Port Configuration
- In the WebUI, click the Settings tab.
- In the left navigation pane, go to Node Interfaces > Ports.
- Click the port you wish to configure.
Configure the port as shown below.
ISDN Signaling Group Configuration
- In the WebUI, click the Settings tab.
- In the left navigation pane, go to Signaling Groups.
- Add a new ISDN Signaling Group.
Configure the new ISDN Signaling Group as shown below.
ISDN Signaling Group Configuration
Verification
Endpoint Registration:
When the endpoint registers, the registration request arrives to the SBC Edge through the SIP signaling group, the SBC Edge responds to the REGISTRATION request with a 200 OK – a successful SIP endpoint registration occurs.
Using the Log Exchange utility, you can quickly verify the relevant SIP messaging: