# MC7750: CDMA/EVDO Only

**URL:** <https://forum.sierrawireless.com/t/mc7750-cdma-evdo-only/6174>\
**Category:** MC/EM Series\
**Created:** [February 26, 2013, 12:14am UTC](https://forum.sierrawireless.com/t/mc7750-cdma-evdo-only/6174 "2013-02-26T00:14:34Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![tuzos2013](https://avatars.discourse-cdn.com/v4/letter/t/e0b2c6/32.png) [@tuzos2013](https://forum.sierrawireless.com/u/tuzos2013)\
**Post date:** [February 26, 2013, 12:14am UTC](https://forum.sierrawireless.com/t/mc7750-cdma-evdo-only/6174/1 "2013-02-26T00:14:34Z")

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Hello all,

Does MC7750 support CDMA/EVDO Only (instead of LTE to EVDO fallback)?

I show the ESN number being displayed via AT command both in HEX and DEC format.

Regards,

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**Author:** ![lotam](https://avatars.discourse-cdn.com/v4/letter/l/958977/32.png) [@lotam](https://forum.sierrawireless.com/u/lotam)\
**Post date:** [February 27, 2013, 1:31am UTC](https://forum.sierrawireless.com/t/mc7750-cdma-evdo-only/6174/2 "2013-02-27T01:31:41Z")

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Hi,

Does network registration works in automatic mode (LTE/CDMA) and fallback?

If yes and if you want it to run only in CDMA/EVDO mode, you may try !SELRAT command, check the options available using “AT!SELRAT=?”, refer to Standard AT command guide for more details.

Hope it helps.  
L