Simple Network Paging Protocol
{{Short description|Networking protocol for pagers}}
Simple Network Paging Protocol (SNPP) is a protocol that defines a method by which a pager can receive a message over the Internet. It is supported by most major paging providers, and serves as an alternative to the paging modems used by many telecommunications services. The protocol was most recently described in {{IETF RFC|1861}}. It is a fairly simple protocol that may run over TCP port 444 and sends out a page using only a handful of well-documented commands.
Connecting and using SNPP servers
It is relatively easy to connect to a SNPP server, only requiring a telnet client and the address of the SNPP server. The port 444 is standard for SNPP servers, and it is free to use from the sender's point of view. Maximum message length can be carrier-dependent.{{cite web|url=http://www.notepage.net/snpp.htm|title=SNPP Information for Paging Carriers (More complete than snpp.info copy)|accessdate=9 January 2011|archiveurl=https://web.archive.org/web/20080727095942/http://www.notepage.net/snpp.htm|archivedate=2008-07-27}}{{cite web|url=http://www.snpp.info/snpp-carrier-support.htm|title=SNPP Port Numbers and Addresses|accessdate=9 January 2011|archiveurl=https://web.archive.org/web/20080504100148/http://www.snpp.info/snpp-carrier-support.htm|archivedate=2008-05-04}} Once connected, a user can simply enter the commands to send a message to a pager connected to that network. For example, a PAGE command with the number of the device specifies the device to send the message to. The MESS command sets the text of the message to be sent to the text following it. The message is sent out by issuing the SEND command. The session is ended with the QUIT command, or be continued with more sets of commands to send another message to a different device. The protocol also allows multiple PAGE commands for one message, stacked one after the other, allowing a same message to be sent to several devices on the network with one MESS and SEND command pair.{{Cite IETF |title=Simple Network Paging Protocol - Version 3 - Two-Way Enhanced |rfc=1861 |sectionname=The SNPP Protocol |section=4 |last=Gwinn Jr. |first=Allen |date=October 1995 |publisher=IETF |access-date=2024-12-22}}
References
{{Reflist}}
External links
- [http://ftp.rfc-editor.org/in-notes/rfc1861.txt rfc-editor.org - RFC 1861]
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