# What is the maximum length for AT+CUSD command?

**URL:** <https://forum.sierrawireless.com/t/what-is-the-maximum-length-for-at-cusd-command/6120>\
**Category:** General wireless topics FAQ\
**Created:** [February 6, 2013, 9:48am UTC](https://forum.sierrawireless.com/t/what-is-the-maximum-length-for-at-cusd-command/6120 "2013-02-06T09:48:09Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![FAQ\_Poster](https://avatars.discourse-cdn.com/v4/letter/f/f9ae1b/32.png) [@FAQ\_Poster](https://forum.sierrawireless.com/u/FAQ_Poster)\
**Post date:** [February 6, 2013, 9:48am UTC](https://forum.sierrawireless.com/t/what-is-the-maximum-length-for-at-cusd-command/6120/1 "2013-02-06T09:48:09Z")

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Hi,

The maximum string length that is acceptable is 182 characters. CUSD depends on the network implementation as it is a supplementary service. +CUSD: 4 is normally returned by the network which means either the CUSD is not recognized or is not supported.