Automatic gprs-session parking when audio call is incoming?

Legacy Open AT
1

There is some AT commands to instruct the Q2686 to perform an automatic gprs-session parking when an inbound call is incoming ? My app on fastrack xtend doesn’t give priority to audio call when a gprs socket is connected… why ?

2

https://forum.sierrawireless.com/t/intercept-incoming-voice-call-during-gprs-session/4447/7

3

AT+WBHV=7,1 responds “ERROR” on FastTrack XTend. Why ?

AT+WBHV=7,1
ERROR
AT+WBHV=?
+WBHV: 0,(0-1)
+WBHV: 1,(0-2)
+WBHV: 2,(0-1)
+WBHV: 3,(0-1),(0-1)
+WBHV: 4,(0-1)
+WBHV: 5,(0-1)
+WBHV: 6,(1-255),(10-2550)
+WBHV: 8,(0-1)
+WBHV: 9,(0-1)
OK

Param 7 isn’t supported.