# Simple SMS application

**URL:** https://forum.sierrawireless.com/t/simple-sms-application/6320
**Category:** Legacy FX/FXT series
**Created:** [May 17, 2013, 11:35am UTC](https://forum.sierrawireless.com/t/simple-sms-application/6320 "2013-05-17T11:35:23Z")
**Posts on this page:** 1
**Showing post:** 8

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### Author: ![awneil](https://avatars.discourse-cdn.com/v4/letter/a/49beb7/32.png) [@awneil](https://forum.sierrawireless.com/u/awneil)
#### Post date: [May 20, 2013, 4:47pm UTC](https://forum.sierrawireless.com/t/simple-sms-application/6320/8 "2013-05-20T16:47:12Z")

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> [@tomridl](#):
>
> under level 14 is user traces and over is ADL traces

This is true, but undocumented: [Undocumented: ADL\_TRC\_ Trace Levels used internally by ADL - #10 by awneil](https://forum.sierrawireless.com/t/undocumented-adl-trc-trace-levels-used-internally-by-adl/1371/10)

User code can use levels \>14.

Not all levels \>14 are actually used by ADL - some are never used (any more); some are only used by specific features.

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