NoOp()

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Do Nothing (No Operation).

Last reviewed 2026-04-14

NoOp([text])
Dialplan Builder -- build your NoOp() command
Any text provided can be viewed at the Asterisk CLI.
Full arguments reference
  • text - Any text provided can be viewed at the Asterisk CLI.
Description

This application does nothing. However, it is useful for debugging purposes.

This method can be used to see the evaluations of variables or functions without having any effect.

Arguments
  • text - Any text provided can be viewed at the Asterisk CLI.
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ConfBridge() MusicOnHold() StartMusicOnHold() StopMixMonitor() ADSIProg() AELSub() AGI() AMD() AddQueueMember() AgentLogin() AgentRequest() AlarmReceiver() Answer() AttendedTransfer() AudioSocket() Authenticate() Background() BackgroundDetect() BlindTransfer() Bridge() BridgeAdd() BridgeWait() Broadcast() Busy() CELGenUserEvent() CallCompletionCancel() CallCompletionRequest() ChanIsAvail() ChanSpy() ChangeMonitor() ChannelRedirect() ClearHash() ConfKick() Congestion() ContinueWhile() ControlPlayback() DAHDIAcceptR2Call() DAHDIRAS() DAHDIScan() DAHDISendCallreroutingFacility() DAHDISendKeypadFacility() DBdeltree() DISA() DateTime() DeadAGI() Dial() Dictate() Directory() DumpChan() EAGI() Echo() Else() ElseIf() EndIf() EndWhile() Exec() ExecIf() ExecIfTime() ExitIf() ExitWhile() ExtenSpy() ExternalIVR() Festival() Flash() FollowMe() ForkCDR() GetCPEID() Gosub() GosubIf() Goto() GotoIf() GotoIfTime() Hangup() HangupCauseClear() IAX2Provision() ICES() IVRDemo() If() ImportVar() Incomplete() JACK() JabberJoin() JabberLeave() JabberSend() JabberSendGroup() JabberStatus() Log() MP3Player() MSet() Macro() MacroExclusive() MacroExit() MacroIf() MailboxExists() MeetMe() MeetMeAdmin() MeetMeChannelAdmin() MeetMeCount() MessageSend() Milliwatt() MinivmAccMess() MinivmDelete() MinivmGreet() MinivmMWI() MinivmNotify() MinivmRecord() MixMonitor() Monitor() Morsecode() NBScat() NoCDR() NoOp() ODBCFinish() ODBC_Commit() ODBC_Rollback() OSPAuth() OSPFinish() OSPLookup() OSPNext() Originate() PJSIPHangup() PJSIPNotify() Page() Park() ParkAndAnnounce() ParkedCall() PauseMonitor() PauseQueueMember() Pickup() PickupChan() PlayTones() Playback() PrivacyManager() Proceeding() Progress() Queue() QueueLog() QueueUpdate() RaiseException() Read() ReadExten() ReceiveFAX() ReceiveMF() ReceiveSF() ReceiveText() Record() Reload() RemoveQueueMember() ResetCDR() RetryDial() Return() Ringing() SIPAddHeader() SIPDtmfMode() SIPRemoveHeader() SIPSendCustomINFO() SLAStation() SLATrunk() SMS() SayAlpha() SayAlphaCase() SayCountedAdj() SayCountedNoun() SayDigits() SayMoney() SayNumber() SayOrdinal() SayPhonetic() SayUnixTime() SendDTMF() SendFAX() SendImage() SendMF() SendSF() SendText() SendURL() Set() SetAMAFlags() Signal() SkelGuessNumber() SoftHangup() SpeechActivateGrammar() SpeechBackground() SpeechCreate() SpeechDeactivateGrammar() SpeechDestroy() SpeechLoadGrammar() SpeechProcessingSound() SpeechStart() SpeechUnloadGrammar() StackPop() Stasis() StatsD() StopMonitor() StopMusicOnHold() StopPlayTones() StoreDTMF() StreamEcho() System() TestClient() TestServer() ToneScan() Transfer() TryExec() TrySystem() UnpauseMonitor() UnpauseQueueMember() UserEvent() VMAuthenticate() VMSayName() Verbose() VoiceMail() VoiceMailMain() VoiceMailPlayMsg() Wait() WaitDigit() WaitExten() WaitForCondition() WaitForNoise() WaitForRing() WaitForSignal() WaitForSilence() WaitForTone() WaitUntil() While() Zapateller()
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ConfBridge() MusicOnHold() StartMusicOnHold() StopMixMonitor() ADSIProg() AELSub() AGI() AMD() AddQueueMember() AgentLogin() AgentRequest() AlarmReceiver() Answer() AttendedTransfer() AudioSocket() Authenticate() Background() BackgroundDetect() BlindTransfer() Bridge() BridgeAdd() BridgeWait() Broadcast() Busy() CELGenUserEvent() CallCompletionCancel() CallCompletionRequest() ChanIsAvail() ChanSpy() ChangeMonitor() ChannelRedirect() ClearHash() ConfKick() Congestion() ContinueWhile() ControlPlayback() DAHDIAcceptR2Call() DAHDIRAS() DAHDIScan() DAHDISendCallreroutingFacility() DAHDISendKeypadFacility() DBdeltree() DISA() DateTime() DeadAGI() Dial() Dictate() Directory() DumpChan() EAGI() Echo() Else() ElseIf() EndIf() EndWhile() Exec() ExecIf() ExecIfTime() ExitIf() ExitWhile() ExtenSpy() ExternalIVR() Festival() Flash() FollowMe() ForkCDR() GetCPEID() Gosub() GosubIf() Goto() GotoIf() GotoIfTime() Hangup() HangupCauseClear() IAX2Provision() ICES() IVRDemo() If() ImportVar() Incomplete() JACK() JabberJoin() JabberLeave() JabberSend() JabberSendGroup() JabberStatus() Log() MP3Player() MSet() Macro() MacroExclusive() MacroExit() MacroIf() MailboxExists() MeetMe() MeetMeAdmin() MeetMeChannelAdmin() MeetMeCount() MessageSend() Milliwatt() MinivmAccMess() MinivmDelete() MinivmGreet() MinivmMWI() MinivmNotify() MinivmRecord() MixMonitor() Monitor() Morsecode() NBScat() NoCDR() NoOp() ODBCFinish() ODBC_Commit() ODBC_Rollback() OSPAuth() OSPFinish() OSPLookup() OSPNext() Originate() PJSIPHangup() PJSIPNotify() Page() Park() ParkAndAnnounce() ParkedCall() PauseMonitor() PauseQueueMember() Pickup() PickupChan() PlayTones() Playback() PrivacyManager() Proceeding() Progress() Queue() QueueLog() QueueUpdate() RaiseException() Read() ReadExten() ReceiveFAX() ReceiveMF() ReceiveSF() ReceiveText() Record() Reload() RemoveQueueMember() ResetCDR() RetryDial() Return() Ringing() SIPAddHeader() SIPDtmfMode() SIPRemoveHeader() SIPSendCustomINFO() SLAStation() SLATrunk() SMS() SayAlpha() SayAlphaCase() SayCountedAdj() SayCountedNoun() SayDigits() SayMoney() SayNumber() SayOrdinal() SayPhonetic() SayUnixTime() SendDTMF() SendFAX() SendImage() SendMF() SendSF() SendText() SendURL() Set() SetAMAFlags() Signal() SkelGuessNumber() SoftHangup() SpeechActivateGrammar() SpeechBackground() SpeechCreate() SpeechDeactivateGrammar() SpeechDestroy() SpeechLoadGrammar() SpeechProcessingSound() SpeechStart() SpeechUnloadGrammar() StackPop() Stasis() StatsD() StopMonitor() StopMusicOnHold() StopPlayTones() StoreDTMF() StreamEcho() System() TestClient() TestServer() ToneScan() Transfer() TryExec() TrySystem() UnpauseMonitor() UnpauseQueueMember() UserEvent() VMAuthenticate() VMSayName() Verbose() VoiceMail() VoiceMailMain() VoiceMailPlayMsg() Wait() WaitDigit() WaitExten() WaitForCondition() WaitForNoise() WaitForRing() WaitForSignal() WaitForSilence() WaitForTone() WaitUntil() While() Zapateller()