How to configure VoLTE on WP7607

IoT Modules WP Series
21

Hello,

I’m trying to enable VoLTE on modem FX30 (WP7607-1) but it’s not working.

The info of my modem are :

ati3
Manufacturer: Sierra Wireless, Incorporated
Model: FX30(WP7607-1)
Revision: SWI9X07Y_02.37.03.00 73df45 jenkins 2020/04/08 10:59:14
IMEI: 352650100199070
IMEI SV: 14
FSN: EE521151320910
+GCAP: +CGSM

OK

ati8
Legato Ver: 19.11.5_745de45d003c3ef775f6c570c8130fc2_modified
Yocto Ver: SWI9X07Y_02.37.10.03 2022-08-25_10:05:39
OS Ver: Linux version 3.18.140 (oe-user@oe-host) (gcc version 7.3.0 (GCC) ) #1 PREEMPT Thu Aug 25 09:57:59 UTC 2022
LK Ver: 1.3.0_482d4b1057
RootFS Ver: SWI9X07Y_02.37.10.03 2022-08-25_10:05:39
UserFS Ver: unknown
MCU Ver: 002.015

OK

ati9
Manufacturer: Sierra Wireless, Incorporated
Model: FX30(WP7607-1)
Revision: SWI9X07Y_02.37.03.00 73df45 jenkins 2020/04/08 10:59:14
IMEI: 352650100199070
IMEI SV: 14
FSN: EE521151320910
+GCAP: +CGSM

OK

at!gstatus?
!GSTATUS:
Current Time: 83442 Temperature: 34
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 2 Mode: ONLINE
System mode: LTE PS state: Attached
IMS reg state: UNKNOWN IMS mode: Not Support
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
LTE band: B3 LTE bw: 20 MHz
LTE Rx chan: 1300 LTE Tx chan: 19300
LTE CA state: INACTIVE
EMM state: Registered Normal Service
RRC state: RRC Idle

PCC RxM RSSI: -65 RSRP (dBm): -95
PCC RxD RSSI: -91 RSRP (dBm): -134
Tx Power: – TAC: 0567 (1383)
RSRQ (dB): -10 Cell ID: 00AABF12 (11190034)
SINR (dB): 7.8

OK

at+cgact?
+CGACT: 1,1

Do you have some clues to configure it ? I saw than “IMS mode: Not Support” but I don’t know if I can force it ?

Regards,

22

Are you able to dial voice call by "ATD1234567; " ?

If no, probably you need to contact distributor to get a tool to enable VoLTE.

23

If I make a phone call with “ATD1234567;” it’s working though GSM/UMTS.

Just to explain the context, we have some customers in Switzerland which are using Sunrise provider which has disabled 2G/3G network.

So now, we need to make phone call though 4G (VoLTE) but I tried to configure the modem without success.

To make my test, I try to force the modem to use LTE only with command “AT+KSRAT=5” and it’s not working though LTE only.

If you have some idea how I can test it ?

24

do you mean after setting at+KSRAT=5, it cannot register network in AT!GSTATUS?
Or just it cannot dial phone call by ATD1234567; ?

BTW, have you contacted distributor to get a tool to enable VoLTE?

25

I mean, than I cannot dial ATD1234567;

This is the status I have when I enter in KSRAT=5
##################################
at+KSRAT=5
OK
##################################
AT!GSTATUS?
!GSTATUS:
Current Time: 146918 Temperature: 33
Modem Mitigate Level: 0 ModemProc Mitigate Level: 0
Reset Counter: 2 Mode: ONLINE
System mode: LTE PS state: Attached
IMS reg state: UNKNOWN IMS mode: Not Support
IMS Srv State: UNKNOWN SMS,UNKNOWN VoIP
LTE band: B20 LTE bw: 10 MHz
LTE Rx chan: 6400 LTE Tx chan: 24400
LTE CA state: INACTIVE
EMM state: Registered Normal Service
RRC state: RRC Connected

PCC RxM RSSI: -61 RSRP (dBm): -84
PCC RxD RSSI: -92 RSRP (dBm): -120
Tx Power: – TAC: 0567 (1383)
RSRQ (dB): -10 Cell ID: 00AABF11 (11190033)
SINR (dB): 7.6

OK
##################################

26

if this module is not VoLTE SKU, probably you need to contact distributor to get a tool to enable VoLTE.