# +cme error: 515

**URL:** <https://forum.sierrawireless.com/t/cme-error-515/2243>\
**Category:** Open AT\
**Created:** [June 13, 2008, 3:21pm UTC](https://forum.sierrawireless.com/t/cme-error-515/2243 "2008-06-13T15:21:07Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![roorback](https://avatars.discourse-cdn.com/v4/letter/r/c57346/32.png) [@roorback](https://forum.sierrawireless.com/u/roorback)\
**Post date:** [June 13, 2008, 3:21pm UTC](https://forum.sierrawireless.com/t/cme-error-515/2243/1 "2008-06-13T15:21:07Z")

</div>

Hello, everyone!  
First excuse for my bad english.  
As a beginner I ´d aprreciate to learn about modem wavecom, I have here the Q2105B.  
I want to use functions adl to execute AT commands. In this exemple:

```auto
adl_atCmdCreate("at+cclk?",TRUE,GPRSHandler,"*",NULL);
```

I receiving the answer :

> [@](#):
>
> +CCLK: “00/01/01,11:05:30”

. It’s OK.  
But when I execute this command:

```auto
adl_atCmdCreate("at+cpbs?",TRUE,GPRSHandler,"*",NULL);
```

I receiving this answer:

> [@](#):
>
> +CME ERROR: 515

. It’s not ok. Why it’s happen?

Thanks!