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 Is Unicode supported with the SMS channel on the Messages and Dispatch APIs? How can I receive the network ID on a delivery receipt in SMPP? Should I bind with transceiver or transmitter/receiver? How can I configure Kannel with Vonage SMPP? Comments 0 comments Please sign in to leave a comment.