/mcphttps://<connection-server>/vmrest/distributionlists/<distributionlistobjectid>/voicename Add/Update Voice Name Recording the Greeting using Telephony Interface It’s a three step process to record a new file then modify the current stream with this new stream Step 1 Call Connection In the first step, the integration between Unity Connection and Call Manager must be setup so that a call can be setup. Refer to the document at the below link to check how to make the call. http://docwiki.cisco.com/wiki/Cisco_Unity_Connection_Telephony_Interface_(CUTI)API--_Using_CUTI_for_Basic_Call_Operations  Step 2 Recording Once the phone is answered, the second step is to record the greeting. The length of the greeting can be set under the System Settings > General Configuration settings. Here you can enter the maximum length for system call handler greetings. The range is 1 to 1,200 seconds and default setting is 90 seconds. The minimum and maximum length of the recording using telephony integration can be seen in Connection Administration under the Advanced >> Telephony settings. • Maximum Recording Time in Milliseconds – default value 1200000 • Minimum Recording Duration in Milliseconds -default value 1000 The same can be fetched using APIs using the following URL: https://<connection-server>/vmrest/configurationvalues Check for the values The request is as follows: <ConfigurationValue> <Type>3</Type> <LastModifiedTime>2013-01-21 07:21:53.49</LastModifiedTime> <LastModifiedByComponent>CUADMIN</LastModifiedByComponent> <FullName>System.Telephony.RecordingMinimumLengthMs</FullName> <Value>1000</Value> <UserSetting>true</UserSetting> <MinVal>0</MinVal> <MaxVal>5000</MaxVal> <RequiresRestart>false</RequiresRestart> </ConfigurationValue> Response Code: 200 Configuration values can be modified using Connection Administration.. JSON Example Cisco Unity Connection Telephony Interface (CUTI) API 35 Cisco Unity Connection Provisioning Interface (CUTI) API -- Voice Name Upload for Distribution Lists Add/Update Voice Name Recording the Greeting using Telephony Interface