---title: Sending an SMS from FreeSWITCH XML Dialplanslug: /guides/sending-an-sms-from-freeswitch-xml-dialplan-through-signalwire-cloudsidebar_position: 4x-custom: ported_from_readme: true---In order to send an SMS from a FreeSWITCH dialplan extension, we need to do a few things:1. Fill out the **space_name**, **project_key**, **api_token**, **signalwire_number**, and **cellphone** channel variables.2. Substitute all the spaces in the **sms_body** for the url encoded equivalent of %20: sms_body=${system(printf aleg ${uuid} is calling bleg ${bleg_uuid} | sed -r s/ /%20/g)}3. Calculate the base64 equivalent of your authorization credentials so **auth** is properly setup for curl header **append_headers Authorization:basic ${auth}**: auth=${system(printf ${project_key}:${api_token} | base64 --wrap 0)4. Then, you have the Dialplan Extension. Dial 792 from any registered sip phone, or from bash do: **fs_cli -x originate loopback/792 echo inline**. Then, your cellphone should receive a text. Review the comments in the extension for additional notes.xml
