Please help me => +CMS ERROR: 500

[afsoongar]

hi
I want send a SMS in PDU mode to mobile.

1- conver "test" to 8bit
test = 74657374

2- i have send to mobile with 09143548579

09143548579 = 9041538475F9

3- run HyperTerminal soft and write this codes

at+cmgf=0
OK
at+cmgs=18
> 0051000B919041538475F900F5A70474657374<ctrl+z>

but give this error

+CMS ERROR: 500


please help me

[Jason Glass]

can you send a sms using non PDU, maybe device doesnt support sending sms

AT+CMGF=1
OK
AT+CMGS="+4806781400"
> Test
> test2
OK

[afsoongar]

no no no
i want send Unicode Message to mobile, in text mode only send non unicode massage.
plese help to me to send unicode SMS

[Jason Glass]

yours doesnt look correct, look at this...

Sending a message in the PDU mode
The following example shows how to send the message "hellohello" in the PDU mode from a Nokia 6110.


AT+CMGF=0 //Set PDU mode
AT+CSMS=0 //Check if modem supports SMS commands
AT+CMGS=23 //Send message, 23 octets (excluding the two initial zeros)
>0011000B916407281553F80000AA0AE8329BFD4697D9EC37<ctrl-z>

There are 23 octets in this message (46 'characters'). The first octet ("00") doesn't count, it is only an indicator of the length of the SMSC information supplied (0). The PDU string consists of the following:

can you send this successfully? if you can, then there your doing something wrong, or device might not support it.

more help and insight, is located here, let me know please if it helps you!

http://www.dreamfabric.com/sms/

[Jason Glass]

also dont know it matters, but you have a typo maybe ity is messing you up, i.e. extra space in lead after arrow
> 0051000B919041538475F900F5A70474657374<ctrl+z>
^

[afsoongar]

hi
I test your code in HyperTerminal and it work ok


AT+CMGF=0
OK
AT+CSMS=0
+CSMS: 1,1,1

OK
AT+CMGS=23
> 0011000B916407281553F80000AA0AE8329BFD4697D9EC37<ctrl+z>
+CMGS: 101

OK


but !!!
i codeing "hellohello" to 8 bit and it equal 68656C6C6F68656C6C6F but you write 0AE8329BFD4697D9EC37??????

please help

[Jason Glass]

did you read the article/link, maybe your doing something different in your conversions

"Interpreting 8-bit octets as 7-bit messages
This transformation is described in detail in GSM 03.38, and an example of the "hellohello" transformation is shown here. The transformation is based on the 7 bit default alphabet , but an application built on the PDU mode can use any character encoding. "

Coding 7-bit data (septets) into octets
The message "hellohello" consists of 10 characters, called septets when represented by 7 bits each. These septets need to be transformed into octets for the SMS transfer.

Read this link, i cant post it, as it's a table, and dont know how to insert...
http://www.dreamfabric.com/sms/hello.html
shows youi how to convert the hello characters

[darshan2111]

Hi!
I tried both the method for sending SMS i.e Text as well as PDU. But I am still receiving error 500.
Please help me.

And Does the GSM modem should have GPRS enabled ?

[darshan2111]

HI Jason!
This is what i tried
AT
OK
AT+CMGf=1
OK
AT+CSCA="9825001002"
OK
AT+CMGS="+919825506646"
> Test Message
+CMS ERROR: 500
AT
OK
AT+CMGS="9825506646"
ERROR
AT+CMGS="+919825506646"
> Text message 
+CMS ERROR: 500
AT+CMGF=0
OK
AT+CSCA="9825001002"
OK
AT+CMGS=23
> 0011000B916407281553F80000AA0AE8329BFD4697D9EC37
+CMS ERROR: 500

Please help me.