3G Modem Ericsson F3507g

Device: RB411U;
RouterOS ver.: 5.19;
3G Modem: Ericsson F3507g (Manufacturer Dell).

[admin@MikroTik] > system resource usb print 
 # DEVICE VENDOR                                                     NAME                                                     SPEED                                                    
 0 2:1                                                               RB400 EHCI                                               480 Mbps                                                 
 1 2:2    Dell                                                       Dell Wireless 5530 HSPA Mobile Broadband Minicard Device 480 Mbps                                                 
 2 1:1                                                               RB400 OHCI                                               12 Mbps                                                  
[admin@MikroTik] >

Wiki.Mikrotik says

Set init string AT+CFUN=1, data channel and info channel to 3.

But

[admin@MikroTik] > interface ppp-client set data-channel=3
numbers: 0
no such data channel!
[admin@MikroTik] >

So 3G connection cannot be established. Any ideas?