Which SMPP version is supported? Nexmo Support October 14, 2021 20:22 Updated Question Which version of SMPP is supported? Applies To SMPP Answer The Vonage SMPP API supports SMPP version 3.4. You can download the SMPP v 3.4 protocol specifications here. Related articles Vonage SMPP Server At A Glance What field contains the message ID in SMPP? Does Vonage need to add my originating IP address to an allow list? SMS Rejected Error 103 Command Status 0x00000067 What recording capabilities does Vonage Video API offer? Comments 0 comments Please sign in to leave a comment.