# FTP read/write my FTP site Digi XBee 3 Cellular LTE-M/NB-IoT ATT Service **URL:** \ **Category:** XBee - Cellular\ **Tags:** file, read, ftp, lte-m, write\ **Created:** [July 1, 2021, 9:51am UTC](https://forums.digi.com/t/ftp-read-write-my-ftp-site-digi-xbee-3-cellular-lte-m-nb-iot-att-service/22515 "2021-07-01T09:51:42Z")\ **Posts on this page:** 6\ **Page:** 1
**Author:** ![WesleyB](https://avatars.discourse-cdn.com/v4/letter/w/9dc877/32.png) [@WesleyB](https://forums.digi.com/u/WesleyB)\ **Post date:** [July 1, 2021, 9:51am UTC](https://forums.digi.com/t/ftp-read-write-my-ftp-site-digi-xbee-3-cellular-lte-m-nb-iot-att-service/22515/1 "2021-07-01T09:51:42Z")
I purchased a LTE-M module early and was disappointed that with ATT I could not send an SMS message. So I have not worked with it anymore until now. I am wondering if with ATT service I can read/write a short file to a FTP site of my choice. I want to write a value to a data file on my FTP site and then have a 2nd device be able to read the data file as a way to transfer data from one site to another. I want to be able to turn on a irrigation valve remotely from another site. Pretty much a wire replacement. No power source so I want to operate off solar and need to minimize power use. I have latching relays so I can latch on and then sleep for awhile. I would like to use python to read/write via FTP to my FTP site. Any better ideas would be welcome. Looking for a point to point solution and not going through someone else site. Thanks for any input on this. ---
**Author:** ![WesleyB](https://avatars.discourse-cdn.com/v4/letter/w/9dc877/32.png) [@WesleyB](https://forums.digi.com/u/WesleyB)\ **Post date:** [July 7, 2021, 9:01am UTC](https://forums.digi.com/t/ftp-read-write-my-ftp-site-digi-xbee-3-cellular-lte-m-nb-iot-att-service/22515/2 "2021-07-07T09:01:12Z")
Well, I just ordered a new kit from Digikey. I will be documenting opening it and connecting it on a Youtube Video. Going to try to do a FTP file in my own FTP directory. It comes with a DIGI ATT SIM. ATT has a marketplace and sells SIMS with service as well. That is what I tried with my original kit which seems to be obsolete now. Any help would be appreciated. I want to document my experience for others on Youtube. Look for me there with keywords ATT NB-IoT FTP. Going to start out with a unboxing video. I am surprised there is not more interest in NB-IoT. It is supposed to be available now. ---
**Author:** ![acpie360](https://avatars.discourse-cdn.com/v4/letter/a/9d8465/32.png) [@acpie360](https://forums.digi.com/u/acpie360)\ **Post date:** [July 7, 2021, 5:36pm UTC](https://forums.digi.com/t/ftp-read-write-my-ftp-site-digi-xbee-3-cellular-lte-m-nb-iot-att-service/22515/3 "2021-07-07T17:36:23Z")
I don’t have an AT&T SIM that even has a phone number. However, I tested the SMS feature using my Verizon data SIM and it worked. The text message came in the 9F command (using API Mode Without Escapes), including my phone number. ---
**Author:** ![WesleyB](https://avatars.discourse-cdn.com/v4/letter/w/9dc877/32.png) [@WesleyB](https://forums.digi.com/u/WesleyB)\ **Post date:** [July 8, 2021, 1:48pm UTC](https://forums.digi.com/t/ftp-read-write-my-ftp-site-digi-xbee-3-cellular-lte-m-nb-iot-att-service/22515/4 "2021-07-08T13:48:35Z")
Thank you for your answer. I got my new kit yesterday and I received my ATT NB-IoT SIM. Both SIMs would get a connection. I really like having a LED now that shows the connection. I will be trying a few things and posting back here. ---
**Author:** ![WesleyB](https://avatars.discourse-cdn.com/v4/letter/w/9dc877/32.png) [@WesleyB](https://forums.digi.com/u/WesleyB)\ **Post date:** [July 9, 2021, 8:18am UTC](https://forums.digi.com/t/ftp-read-write-my-ftp-site-digi-xbee-3-cellular-lte-m-nb-iot-att-service/22515/5 "2021-07-09T08:18:16Z")
Why is it so difficult to get the new LTE-M/NB-IoT modules? I look at the suppliers and they are all back ordered? Is this due to the chip supply issues? ---
**Author:** ![WesleyB](https://avatars.discourse-cdn.com/v4/letter/w/9dc877/32.png) [@WesleyB](https://forums.digi.com/u/WesleyB)\ **Post date:** [July 11, 2021, 6:45am UTC](https://forums.digi.com/t/ftp-read-write-my-ftp-site-digi-xbee-3-cellular-lte-m-nb-iot-att-service/22515/6 "2021-07-11T06:45:06Z")
My progress: I was able to get the GET demo to work with both the ATT SIM supplied with my kit and the SIM I ordered from ATT for NB-IoT unlimited for a year. I am happy with this progress. A note though. When I hit the button to send the packet the first time I did not get a response. The second time and after that I did get the response. Don’t give up on the first button press. Hoping this gets to a success for a FTP transfer or at least being able to store/retrieve data on a remote web page.