SIP Line Appearance Outgoing Call Routing

Last Updated : Aug 30, 2026 |
Prolog information
The SIP line appearance entries can be access for outgoing calls in two ways:
Method
Description
Short Code Routing
If the Line Group ID of a Dial short code matches the Outgoing Group ID of the SIP line appearance entry, with available outgoing sessions, then that SIP line appearance can potentially be used as a match for outgoing SIP calls. See Outgoing SIP Call Routing.
  • SIP Line Appearances matches are used before SIP URI entries.
  • This allows the SIP line appearance entries to be used by any user routed to that short code. They do not need to have an programmed Line Appearance buttons available.
  • For users without programmed line appearance buttons to also receive calls from the SIP line appearance, they need to be targeted by its matching incoming call route.
Line Appearance Buttons
For users with Line Appearance buttons programmed to the particular Line Appearance ID numbers being used, they can initiate outgoing calls by pressing any idle line appearance button (pressing a button that is in use, will potentially bridge into that call unless it is connected to voicemail).
  • The users dialing is still processed through short code matching. This allows normal short code manipulation of the outgoing number and/or barring of selected numbers.
  • The short code used to route calls to a SIP Line should use a ; (semi-colon) character at the end of the short code field. That character instructions the system to wait for dialing to be completed before using the short code. Dialing complete is indicated by either:
    • the dialer pressing #.
    • the device/application being used sending a dialing complete signal.
    • the system's Dial Delay Time expiring.
  • In this scenario, the Line Group ID of the short code needs to match the Outgoing Group of the SIP line appearance entry.