# How can I use the Short Message Peer-to-Peer (SMPP) network protocol? Short Message Peer-to-Peer (SMPP) is a 'low level' network protocol used to send and receive SMS traffic between various parties. SMPP is especially popular among heavy users of SMS, including aggregators and operators. The most commonly used versions of the protocol are v3.3 and v3.4. Often the TCP port 2775 is used for SMPP. The SMPP protocol is no longer being developed. An alternative to SMPP is EMI but MessageBird doesn't support this protocol currently. Are you planning to use the SMPP protocol but you don’t support this technology yet? We recommend the [open source software Kannel ](http://www.kannel.org/)which runs on Linux. If you are interested in a MessageBird SMPP account, feel free to contact our Sales team at . --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.bird.com/connectivity-platform/other-integrations/how-can-i-use-the-short-message-peer-to-peer-smpp-network-protocol.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.