# \#sms-serial-text

**URL:** https://forums.digi.com/tag/sms-serial-text/3593.md

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## [Issue with SMS via front DB9 Serial port on WR31](https://forums.digi.com/t/issue-with-sms-via-front-db9-serial-port-on-wr31/19044)

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**Author:** [@BPA\_TELM](https://forums.digi.com/u/BPA_TELM)\
**Replies:** 1\
**Last updated:** [January 26, 2018, 7:34am UTC](https://forums.digi.com/t/issue-with-sms-via-front-db9-serial-port-on-wr31/19044 "2018-01-26T07:34:29Z")

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I am currently trying to send an SMS via a ATMEL microcontroller connected to the WR31’s front DB9 port. Two questions: What is the “Serial Port” number in the configuration wizard that corresponds to the front DB9 co…