# DTMFSpecification


Specifies the DTMF input specifications.

## Contents


 ** deletionCharacter **   <a name="lexv2-Type-DTMFSpecification-deletionCharacter"></a>
The DTMF character that clears the accumulated DTMF digits and immediately ends the input.  
Type: String  
Pattern: `^[A-D0-9#*]{1}$`   
Required: Yes

 ** endCharacter **   <a name="lexv2-Type-DTMFSpecification-endCharacter"></a>
The DTMF character that immediately ends input. If the user does not press this character, the input ends after the end timeout.  
Type: String  
Pattern: `^[A-D0-9#*]{1}$`   
Required: Yes

 ** endTimeoutMs **   <a name="lexv2-Type-DTMFSpecification-endTimeoutMs"></a>
How long the bot should wait after the last DTMF character input before assuming that the input has concluded.  
Type: Integer  
Valid Range: Minimum value of 1.  
Required: Yes

 ** maxLength **   <a name="lexv2-Type-DTMFSpecification-maxLength"></a>
The maximum number of DTMF digits allowed in an utterance.  
Type: Integer  
Valid Range: Minimum value of 1. Maximum value of 1024.  
Required: Yes

## See Also


For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\$1\$1](https://docs.aws.amazon.com/goto/SdkForCpp/models.lex.v2-2020-08-07/DTMFSpecification) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/models.lex.v2-2020-08-07/DTMFSpecification) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/models.lex.v2-2020-08-07/DTMFSpecification)