SIP mapping

The entries made under SIP mapping establish a series of rules for number translation to SIP lines in the trunk or gateway mode.

• A SIP line in trunk mode is used for mediating between internal numbers and the range of telephone numbers offered by a SIP account.
  • For incoming calls, the destination number (called party ID) is modified. The internal number is used if the called party ID matches with the external telephone number.
  • For outgoing calls, the calling party ID is modified. The external number is used if the calling party ID matches with the internal telephone number.
  Note: For SIP mapping on trunk lines, only the extension (DDI) is mapped. The extension is interpreted as those numerals which follow the switchboard number (SIP ID or SIP line).
  
  
  
  
  
• For a SIP line in gateway mode, the telephone number plan of the upstream SIP PBX is adapted to the internal numbers in the call router.
  • For incoming calls (from the SIP line), the calling party ID is modified. The internal number is used if the calling party ID matches with the external telephone number.
  • For outgoing calls (to the upstream PBX), the destination number (called party ID) is modified. The external number is used if the called party ID matches with the internal telephone number.
  Note: For SIP mapping to gateway lines, the full telephone number is mapped. Depending on the configuration, the call number arriving at the ISDN interface can be subjected to further mapping (ISDN mapping).
  
  
  
  
  

SIP mapping is configured under Voice Call Manager > Lines by clicking the button SIP mapping.

Entry active

Activates or deactivates this entry.

Trunk/gateway name

Name of the line which is the destination of the call number mapping.

Comment

Comment about this rule.

External number / name

Call number within the range of those used by the SIP trunk account or upstream SIP PBX.

Length of called number

This value defines the number of numerals required for a called number to be regarded as complete. It only applies to SIP gateway lines with entries that end in a # symbol. For an outgoing call, the external called number generated from this entry is automatically regarded as complete according to the defined number of numerals, and then forwarded. This process speeds up the dialing process. Alternatively, the called number is regarded as complete when:

• The user concludes the dialed number with a # symbol, or
• a precisely matching entry was found in the SIP mapping table without a # symbol, or
• the wait time expires.

Note: By setting the length of called number to '0' you deactivate the premature dialing of the called number based on its length.

Internal destination number

Telephone number in the range of the VoIP router.

Note: Using the # symbol as a placeholder allows blocks of numbers to be captured by one rule.