Asterisk dialplan functions

Overview

Asterisk dialplan function 내용 정리

VALID_EXTEN

입력된 Extension 이 지정된 Context 에 존재하는지 여부를 확인한다.

Determine whether an extension exists or not.

Returns a true value if the indicated context, extension, and priority exist.

This function has been deprecated in favor of the DIALPLAN_EXISTS() function.

VALID_EXTEN(context,extension,priority)

• context : Defaults to the current context.
• extension
• priority : Priority defaults to 1

Example

[DialToInternal]
 include => Internal
 exten => s,1,Goto(${CallFlowID},1)
 exten => _[+0-9]!,1,GoSub(LoopDetection,s,1)
  same => n,ExecIf(${ISNULL(${UniqueID})}?Set(__UniqueID=${UNIQUEID}))
  same => n,Log(NOTICE,${UniqueID}-${CONTEXT}(${UNIQUEID}@${CHANNEL}))
  same => n,GotoIf(${VALID_EXTEN(Internal,${EXTEN},1)}?Internal,${EXTEN},1)

See also

• https://wiki.asterisk.org/wiki/display/AST/Asterisk+14+Function_VALID_EXTEN

IMPORT

Retrieve the value of a variable from another channel.

IMPORT(channel,variable)

• channel
• variable

Example

[TransferFromMVNO]

exten => _[+*0-9a-zA-Z]!,2,NoOp(Transfer from MVNO)
  same => n,Set(__InternalNumber=${IMPORT(${SHARED(TransferChennel)},InternalNumber)})
  ...

See also

• https://wiki.asterisk.org/wiki/display/AST/Asterisk+14+Function_IMPORT

See also

• https://wiki.asterisk.org/wiki/display/AST/Asterisk+14+Dialplan+Functions - Asterisk 14 Dialplan Functions