/mcpTo specify message recipient for a call handler, do the following: PUT https://<connection-server>/vmrest/handlers/callhandlers/<callhandler-objectid> Accept: application/json Content_type: application/json Connection: keep_alive Request Body: { "RecipientSubscriberObjectId": "571412d0-6330-433d-8a1f-7f7cb102a09f" } The following is the response from the above PUT request and the actual response will depend upon the information given by you: Response Code: 204 Caller Input Keys http://docwiki.cisco.com/wiki/Cisco_Unity_Connection_Provisioning_Interface_%28CUPI%29_API_--Caller_Input_Keys Updating Caller Input Keys http://docwiki.cisco.com/wiki/Cisco_Unity_Connection_Provisioning_Interface%28CUPI%29_API_--_Updating_Caller_Input_Keys Update the Language of Call Handler To fetch the language code, use the following URI: GET https://<connection-server>/vmrest/languagemap The below table specify the details of value for each field: Description Language UseDefaultLanguage UseCallLanguage This will select the default language. Null/Language Code true false This will inherit the language from user. Null/Language Code true/false true This will select the particular language as per the code. Language Code false false Updating Time Zone of Call Handler This PUT request can be used to update time zone for a call handler template. It can be set to default or particular time zone. To know time zones installed on the server, you can use the following URI: GET https://<connection-server>/vmrest/timezones For updating time zone of a call handler, the mandatory fields are: UseDefaultTimeZone TimeZone Cisco Unity Connection Provisioning Interface (CUPI) API 472 Cisco Unity Connection Provisioning Interface (CUPI) API -- Call Handler Caller Input Keys