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Upgrade to R7.53.1, voice issue or full serial signaling

Solution

Once you've upgraded your M1003G to R7.53.1 it may have some firmware parameters to be fine tuned. See below;

1) Enable the HW DSR/DTR/DCD supports after upgrade:
AT+WHCNF=8,1,2,1,1,1;&W

2) Check:
AT!CUSTOM?
if any are missing from below list please follow the flow and send them back all. For the voice only the "ISVOICEN" flag is important.

AT!ENTERCND="A710"
AT!CUSTOM="PUKPRMPT",1
AT!CUSTOM="MEPCODE",1
AT!CUSTOM="ISVOICEN",1
AT!CUSTOM="STKUIEN",2
AT!CUSTOM="PRLREGION",1
AT!CUSTOM="PCSCDISABLE",3
AT!CUSTOM="GPSENABLE",1
AT!CUSTOM="GPSLPM",1

3) Audio tuning update from Sierra: http://update.maestro-wireless.com/M100/Sierra%20App%20Note%20_%20SL8x-OAT_Audio_Tuning_Guide-APN-R01-06.pdf

 
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Article details
Article ID: 39
Category: Modem & Gateway
Date added: 2016-04-01 11:38:11
Views: 553
Rating (Votes): Article rated 5.0/5.0 (3)

 
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