WP7607 - PPP mode

Hello.
I am using the WP7607-1 modem - I want to switch it to PPP mode, but I haven’t yet succeeded. If I understand correctly, then after the command ATD*99# the modem should answer OK and CONNECT, but in my case this does not happen.
What am I doing wrong?

at
OK
at+ifc=2,2
OK
at+cgdcont=1,"IP","internet.megafon.ru"
OK
at+cgact?
+CGACT: 1,0

OK
at+cgqmin=1,0,4,0,1,31
OK
at+cgqreq=1,0,4,0,1,31
OK
at+cgpaddr
+CGPADDR: 1,0.0.0.0

OK
at+cgdata="PPP"
OK
at+cgact=1,1
OK
at+cgpADDR
+CGPADDR: 1,100.96.115.129

OK
atd*99#;
OK
at+cgdata="PPP",1
ERROR
at+cgpaddr
+CGPADDR: 1,100.96.115.129

OK
at+cgcontrdp=?
+CGCONTRDP: ( 1 )

OK
at+cgdata?
ERROR
at+cgdata=?
+CGDATA: ("PPP")

OK
at
OK
at+cgact?
+CGACT: 1,1

OK
at+cgatt?
+CGATT: 1

in the Linux console, I get the following:

swi-mdm9x28 login: root
root@swi-mdm9x28:~# [   61.281234] sierra_startup_monitor
[  268.791501] afe_send_custom_topology_block: AFE SVC cal has invalid size: 0!
[  268.797651] afe_send_custom_topology: No cal sent for cal_index 7! ret -22
[  268.805074] afe_get_cal_topology_id: [AFE_TOPOLOGY_CAL] not initialized for this port 4096
[  268.842763] afe_get_cal_topology_id: [AFE_TOPOLOGY_CAL] not initialized for this port 4097
[ 2612.369912] afe_get_cal_topology_id: [AFE_TOPOLOGY_CAL] not initialized for this port 4096
[ 2612.407167] afe_get_cal_topology_id: [AFE_TOPOLOGY_CAL] not initialized for this port 4097
[ 4020.479207] afe_get_cal_topology_id: [AFE_TOPOLOGY_CAL] not initialized for this port 4096
[ 4020.516042] afe_get_cal_topology_id: [AFE_TOPOLOGY_CAL] not initialized for this port 4097

how about atd99**1# without the “;” mark?

In this case, the modem responds with ERROR…

i don’t see such issue:

at
OK
atd99**1#
CONNECT 150000000
at
OK
ati3
Manufacturer: Sierra Wireless, Incorporated
Model: WP7608
Revision: SWI9X07Y_02.25.02.01 000000 jenkins 2019/01/30 08:13:05
IMEI: 352913090101013
IMEI SV: 6
FSN: XG805285330104
+GCAP: +CGSM

OK