[Bug 234578] Support for Sierra Wireless EM7455 modem

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=234578

--- Comment #12 from mike@sentex.net ---
(In reply to dean from comment #4)

This is how we use them as well.  We convert them on a linux box to use serial
and then use PPP on FreeBSD over /dev/cuaU0.2.  They are pretty solid in the
field (in Canada on Rogers, Bell and Telus) and give pretty close to expected
speeds. Sierra is pretty good about giving firmware out. You just register on
their website, and you can download the necessary firmware blobs.  But in North
America, I find they work out of the box so to speak. 

ati
Manufacturer: Sierra Wireless, Incorporated
Model: MC7455
Revision: SWI9X30C_02.08.02.00 r5428 CARMD-EV-FRMWR2 2016/01/06 20:38:53
MEID: xxxx
IMEI: xxxx
IMEI SV:  4
FSN: LQ71xxxx
+GCAP: +CGSM


OK
at!GSTATUS?
!GSTATUS: 
Current Time:  498659           Temperature: 33
Reset Counter: 2                Mode:        ONLINE         
System mode:   LTE              PS state:    Attached     
LTE band:      B2               LTE bw:      15 MHz  
LTE Rx chan:   675              LTE Tx chan: 18675
LTE CA state:  NOT ASSIGNED
EMM state:     Registered       Normal Service 
RRC state:     RRC Idle       
IMS reg state: No Srv  

PCC RxM RSSI:  -71              RSRP (dBm):  -100
PCC RxD RSSI:  -94              RSRP (dBm):  -138
Tx Power:      0                TAC:         73A0 (29600)
RSRQ (dB):     -11.7            Cell ID:     008BE916 (9169174)
SINR (dB):     19.0


OK
at+csq
+csq: 21,99

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