# Does the RC7611 support USB audio?

**URL:** <https://forum.sierrawireless.com/t/does-the-rc7611-support-usb-audio/28145>\
**Category:** RC76\
**Created:** [October 19, 2022, 2:22am UTC](https://forum.sierrawireless.com/t/does-the-rc7611-support-usb-audio/28145 "2022-10-19T02:22:05Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![emily](https://avatars.discourse-cdn.com/v4/letter/e/8c91f0/32.png) [@emily](https://forum.sierrawireless.com/u/emily)\
**Post date:** [October 19, 2022, 2:22am UTC](https://forum.sierrawireless.com/t/does-the-rc7611-support-usb-audio/28145/1 "2022-10-19T02:22:05Z")

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Hello. I’m designing a device around the RC7611, connected to a Linux host via USB. It is unclear to me from the documentation whether the PCM interface must be used for phone call audio, or if the USB connection is enough; i.e. does the RC7611 present itself as a USB audio device?

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**Author:** ![jyijyi](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/jyijyi/32/4766_2.png) [@jyijyi](https://forum.sierrawireless.com/u/jyijyi)\
**Post date:** [October 19, 2022, 3:10am UTC](https://forum.sierrawireless.com/t/does-the-rc7611-support-usb-audio/28145/2 "2022-10-19T03:10:12Z")

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I think RC76 does not support usb audio interface