# UDP socket communication

**URL:** <https://forum.sierrawireless.com/t/udp-socket-communication/2621>\
**Category:** Legacy AirPrime modules\
**Created:** [October 27, 2008, 10:27pm UTC](https://forum.sierrawireless.com/t/udp-socket-communication/2621 "2008-10-27T22:27:14Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![brewd07](https://avatars.discourse-cdn.com/v4/letter/b/ecae2f/32.png) [@brewd07](https://forum.sierrawireless.com/u/brewd07)\
**Post date:** [October 27, 2008, 10:27pm UTC](https://forum.sierrawireless.com/t/udp-socket-communication/2621/1 "2008-10-27T22:27:14Z")

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I have two Q2438 modules which I am connecting to my PC and using Hyperterminal to send AT commands. Following are the commands that I am sending.

AT+WCRX=1,1 //Set UDP receive mode; unsolicited data receive.  
at+wppp=0 //Start a PPP session  
at+wipc //display’s IP address  
at+wosk=1,ip1,ip2,ip3,ip4,port# //Start a UDP socket connection to IP address of the other modem on port# specified  
at+wstx=1,session#,5abcde //(6)Transmit socket data

The data reaches the other end module but what gets transmitted to hyperterminal is and . The actual data abcde does not get displayed.

I have tried this with firmware version 3.03 on both ends as well as 3.03 on one end and 3.43 on the other end.

Any help will be appreciated.