Enabling SIP Spiral

Applies to version: v2.8.

SIP spiral permits a SIP request to be routed to a proxy, forwarded onwards, and then be returned once again to the proxy with processing instructions that differ from the original request.

To enable SIP Spiral:

1- Select SIP from the navigation panel

2- Select a SIP configuration from the Sip Configuration List

3- Click Quirks to view options.

• Set the Support Spiral Call checkbox.
• Click Save

List of Parameters

• Support Spiral Calls
• Generate Space After Colon
• Support # and \ in User Info
• ETSI TS 102 027-2 2006 Compliant
• Clear Subscriptions on Call Complete
• Support Quotes in Quoted String
• Support Latin Characters
• Add Angle Brackets Around SIP URI
• Support method UPDATE
• Refuse initial INVITE with To tag