# Speaker and Mic not responding

**URL:** <https://forum.legato.io/t/speaker-and-mic-not-responding/132>\
**Category:** Legato Application Framework\
**Created:** [May 6, 2015, 11:03am UTC](https://forum.legato.io/t/speaker-and-mic-not-responding/132 "2015-05-06T11:03:24Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![shruthi](https://avatars.discourse-cdn.com/v4/letter/s/7ab992/32.png) [@shruthi](https://forum.legato.io/u/shruthi)\
**Post date:** [May 6, 2015, 11:03am UTC](https://forum.legato.io/t/speaker-and-mic-not-responding/132/1 "2015-05-06T11:03:24Z")

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Hello All,  
I am Using Wp7104 module .

I have integrated my module to development kit of Airprime module WP-AR series  
I have connected the speaker phone available with the kit to J300 connector .

I am able to send the AT commands from minicom for basic communication testing .  
But when i send a ring command i wont hear any ringing sound from phone … But in the console it shows the cal incoming .

[code]RING

+CLIP: “+919916200276”,145,0

RING

+CLIP: “+919916200276”,145,0 [/code]

I changed the headset which was supplied with the kit and tested with other . Still the same issue is there

i have tested the same test with one more WP7104-G module in which legato firmware is not running but i am able to get the ring sound .  
Both the modules are with the firmware (06.03.32.00)

Kindly help out with the issue .

Regards  
Shruthi

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**Author:** ![CoRfr](https://sea1.discourse-cdn.com/flex019/user_avatar/forum.legato.io/corfr/32/69_2.png) [@CoRfr](https://forum.legato.io/u/CoRfr)\
**Post date:** [May 19, 2015, 11:49pm UTC](https://forum.legato.io/t/speaker-and-mic-not-responding/132/2 "2015-05-19T23:49:14Z")

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Hi,

are you using version 15.01 ?

The WP7 doesn’t have an internal codec, so you need to make sure that the codec located on the dev kit is:

- powered: for that, turn SW300 on and make sure the associated green LED is on
- connected to J300: for that, the 4 jumpers close to J300 (known as JP300-\>303) are selecting “DIG” (for digital)

If you have that and it is still not working, you can use a tool called “wm8940\_demo” on target to switch between “–pcm” and “–i2s”.  
This should stimulate the codec and you might be able to hear things from the phone (it would ‘crack’ a bit when switching configurations).

As for the ringing sound, I’m not sure there is one with Legato, unless you implement it in an application.

Bertrand

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<div class="post-metadata">

**Author:** ![shruthi](https://avatars.discourse-cdn.com/v4/letter/s/7ab992/32.png) [@shruthi](https://forum.legato.io/u/shruthi)\
**Post date:** [May 20, 2015, 3:16pm UTC](https://forum.legato.io/t/speaker-and-mic-not-responding/132/3 "2015-05-20T15:16:31Z")

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yes we are using 15.01. I rechecked with firmware version 6.03.39(one corresponding to 15.01) and switching to I2S. I am able to hear the uplink and downlink call but ringing sound is not heard in the phone.  
I reconfirmed the firmware where the ringtone was heard it was 6.0.14 but in 6.03.39 , ringing is not heard.  
could you please let me know the reason for this.