I am trying to send a text message from my modem, and the process trips up on one AT command line. In the documentation example it shows quotes " " around the telephone number. Is it necessary to have the quotes or can I get away without using them. Below are the examples:
AT command example I have been using - I have changed my telephone number:
Hi Rocket
you have to use this format - AT+CMGS="+447123456789" then next line commands (this is correct if you use SIM900 or quectel modems). you read the character '>' as reply from the Modem then send the text to be sent as SMS.
Thanks
Thanks for all of your inputs. I am using a Telit modem GE864, and I keep getting the below error message:
cms error 69 = "Requested facility not implemented" This cause indicates that the network is unable to provide the requested short message service.
I have tried two working SIM cards from two different phones, and they both send text messages to each other when in a phone, but in this modem they show the cms error 69. .
In terminal I have checked I have the correct text message centre, and this is setup with the correct number, the reception is good, and the modem is set in text mode. Everything works great up until the point I send ctrlZ 0x1A. Also I have build 2 PCB's and still no progress.
Thanks for your reply. Here in the UK the two biggest providers are Vodafone and O2. Both of these do not work. How, what, where do I look for a SIM card that will work. If you ring them up or go in a shop, the do not understand. Do I therefore need a special m2m card?
Thanks for your reply. Here in the UK the two biggest providers are Vodafone and O2. Both of these do not work. How, what, where do I look for a SIM card that will work. If you ring them up or go in a shop, the do not understand. Do I therefore need a special m2m card?
Not able to identify the cause of error message in the AT command , i thought that it is the service provider who makes a check on the source of messages .
it may even be for security reasons.
Vodafone supports m2m . all are favouring IOT.
may be the provider wants you to register with them for authorising the source....
all the above guessing are based on the status that it works on phones but not on modems.
It's not obvious at first sight what causes cms error 69 when using the cards with your modem. But there are various options to set a specific SMS related parameter wrong. My general approach would be to start from &F factory reset and set all necessary parameters, at least switch from default PDU to text mode. You didn't show the complete modem initialization, so it's not clear what you already did.