# WP7607 - PPP mode

**URL:** <https://forum.sierrawireless.com/t/wp7607-ppp-mode/16584>\
**Category:** IoT Modules\
**Created:** [June 5, 2019, 1:49pm UTC](https://forum.sierrawireless.com/t/wp7607-ppp-mode/16584 "2019-06-05T13:49:24Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![gmarat](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@gmarat](https://forum.sierrawireless.com/u/gmarat)\
**Post date:** [June 5, 2019, 1:49pm UTC](https://forum.sierrawireless.com/t/wp7607-ppp-mode/16584/1 "2019-06-05T13:49:24Z")

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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
```

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<div class="post-metadata">

**Author:** ![gmarat](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@gmarat](https://forum.sierrawireless.com/u/gmarat)\
**Post date:** [June 5, 2019, 2:09pm UTC](https://forum.sierrawireless.com/t/wp7607-ppp-mode/16584/2 "2019-06-05T14:09:15Z")

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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
```

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<div class="post-metadata">

**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:** [June 6, 2019, 12:51am UTC](https://forum.sierrawireless.com/t/wp7607-ppp-mode/16584/3 "2019-06-06T00:51:25Z")

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how about atd_99_\*\*1# without the “;” mark?

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<div class="post-metadata">

**Author:** ![gmarat](https://avatars.discourse-cdn.com/v4/letter/g/bb73d2/32.png) [@gmarat](https://forum.sierrawireless.com/u/gmarat)\
**Post date:** [June 6, 2019, 8:26am UTC](https://forum.sierrawireless.com/t/wp7607-ppp-mode/16584/4 "2019-06-06T08:26:01Z")

</div>

In this case, the modem responds with ERROR…

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<div class="post-metadata">

**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:** [June 10, 2019, 1:31am UTC](https://forum.sierrawireless.com/t/wp7607-ppp-mode/16584/5 "2019-06-10T01:31:59Z")

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i don’t see such issue:

at  
OK  
atd_99_\*\*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