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Brekeke SIP Server Wiki

  1. Brekeke SIP Server Basic Info
  2. Security
  3. Update & Upgrade
  4. Configuration
    1. Installation
    2. Basic Setup
    3. BSS Administration Tool
    4. Network Configuration
    5. Dial Plan
      1. Dial Plan Basics
      2. Dial Plan Reference
        1. Matching Patterns functions
          1. $addr
          2. $addrPort
          3. $addrPrefix
          4. $addrRange
          5. $addrType
          6. $alias
          7. $and
          8. $body
          9. $date
          10. $db
          11. $dispatcher
          12. $eval and $e
          13. $evalRule
          14. $exist
          15. $getDisplayName
          16. $getHost
          17. $getSIPuser
          18. $getUri
          19. $globalAddr
          20. $header
          21. $headerParam
          22. $hop
          23. $if
          24. $ifAddr
          25. $ipv6
          26. $isNull
          27. $isReachable
          28. $isTalking
          29. $localhost
          30. $math
            1. $math.dec
            2. $math.eval
            3. $math.ge
            4. $math.gt
            5. $math.inc
            6. $math.lt
            7. $math.le
            8. $math.max
            9. $math.min
            10. $math.rand
            11. $math.range
          31. $mirroring
          32. $mydomain
          33. $not
          34. $nslookup
          35. $nsreverse
          36. $or
          37. $outbound
          38. $param
          39. $pb.displayname
          40. $pb
          41. $pn
          42. $port
          43. $primary
          44. $radius
          45. $regAddr
          46. $regdb
          47. $registered
          48. $registeredSender
          49. $regUa
          50. $regUri
          51. $request
          52. $rule
          53. $route
          54. $sdp
          55. $servertime
          56. $sessionNum
          57. $sid
          58. $soapGet
          59. $sps
          60. $stackSize
          61. $str
          62. $subParam
          63. $threadNum
          64. $time
          65. $timeRange
          66. $transport
          67. $uriParam
          68. $url
          69. $usrdir.lookup
          70. $webGet
          71. $ws
        2. Deploy Patterns functions
        3. Deploy Patterns variables
      3. Dial Plan Tutorial
      4. Dial Plan Examples
      5. Dial Plan FAQ
    6. Block List
    7. Provisioning
    8. Push Notification
    9. SDN
    10. STIR/SHAKEN
    11. Advanced Edition
    12. Other Functions
    13. Third-Party Database
    14. Environment Variables
  5. Troubleshooting
  6. Version History
  7. Developer's Guide

$math.dec

Decrement the number by 1.

Syntax:
$math.dec( num )
Parameters:
num – number
Returns:

a decremented value

 

Version Since:

1.0

 

Example:
$math.dec( $getSIPuser(To) ) = (.+)

Decrement the dialed number

See Also:

$math.inc

Yes No
« $math$math.eval »
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