# How to do audio record and playback of VoLTE calls using WP7607 module

**URL:** <https://forum.sierrawireless.com/t/how-to-do-audio-record-and-playback-of-volte-calls-using-wp7607-module/16926>\
**Category:** WP Series\
**Created:** [July 8, 2019, 1:22pm UTC](https://forum.sierrawireless.com/t/how-to-do-audio-record-and-playback-of-volte-calls-using-wp7607-module/16926 "2019-07-08T13:22:23Z")\
**Posts on this page:** 1\
**Showing post:** 16

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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:** [July 24, 2019, 2:00am UTC](https://forum.sierrawireless.com/t/how-to-do-audio-record-and-playback-of-volte-calls-using-wp7607-module/16926/16 "2019-07-24T02:00:35Z")

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just did a test to playback a wav file on voice call in LTE network.  
It is working fine.

AT!AVAUDIO=3,1,/home/root/0-to-9\_8k.wav  
OK  
at!avaudio=3,0  
OK

NO CARRIER  
ati3  
Manufacturer: Sierra Wireless, Incorporated  
Model: WP7607  
Revision: SWI9X07Y\_02.25.02.01 000000 jenkins 2019/01/30 08:13:05  
IMEI: 359779081234565  
IMEI SV: 6  
FSN: VN730485080103  
+GCAP: +CGSM

OK  
at!gstatus?  
!GSTATUS:  
Current Time: 2828 Temperature: 34  
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0  
Reset Counter: 1 Mode: ONLINE  
System mode: LTE PS state: Attached  
IMS reg state: NOT REGISTERED IMS mode: Normal  
IMS Srv State: NO SMS,NO VoIP  
LTE band: B3 LTE bw: 10 MHz  
LTE Rx chan: 1851 LTE Tx chan: 19851  
LTE CA state: INACTIVE  
EMM state: Registered Normal Service  
RRC state: RRC Idle

PCC RxM RSSI: -84 RSRP (dBm): -106  
PCC RxD RSSI: -95 RSRP (dBm): -130  
Tx Power: 0 TAC: 0462 (1122)  
RSRQ (dB): -5 Cell ID: 06745D15 (108289301)  
SINR (dB): 15.6

OK

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