Wednesday, February 8, 2017

List of Supported Models

At this moment, only Huawei models are supported. ZTE is on the road…

Note: Some users report bad voice quality using Centos 5 (i.e. Elastix). So, please, be careful with old kernels (i.e. 2.6.18)

Device ModelVoiceSMSUSSDNote
E150-??One way voice 1)
E1550+++See notes 2)
E166???test required
E169G-??test required
E172-??test required
E173++-3) 4)
E1752C+++Several interfaces 5)
E1752+++(voice features disable, you must use dc-unlocker software for enabling voice)
E178???test required
E1820-++(voice feature is disabled, currently no firmware with voice capabilities available)
E3036)++See notes 7)
EG162G???test required
K3565---huawei model working but zte model not working
K3765+++Same model as E1762

USB 2.0

For voice call feature, it's highly recommended the use of USB version 2.0

Power specs and USB hubs

According to vendor specs, most usb modems have:

  • 5V/500mA → 2.5 W

Almost every computer has USB ports where you can plug devices such as pen drives, bluetooth dongles, portable hard disks, etc. 3G modems can also be plugged, but power source may be a serious limitation. If your computer has several USB ports, you must check it can deliver all the power needed for your devices at the same time.

Normally, USB ports can deliver only 500 mA, so if you have more than one modem (or other hungry devices) plugged, it's possible you get stuck with strange problems.

Also, USB hubs can be a source of problems if you connect more than one 3G modem. 500 mA is not enough current for 2 or more dongles. In this case, external powered USB hub is recommended to avoid strange behavior, but be very careful with this, not any model is ok for this task. Some of them have serious problems with RF interferences from GSM side, making impossible to use chan_dongle.

Please, check list of compatible USB hubs

List of compatible USB hubswith chan_dongle

Issue 117: E303


Tuesday, February 7, 2017


STLab Hub with 48 modems Huawei k3520


chan_dongle is an Asterisk channel driver for Huawei UMTS/3G USB modems (dongles). At this moment, the supported features are:

  • Voice calls, dialling by modem name, group, round robin, provider name, IMEI or IMSI.
  • Call waiting
  • Call holding
  • Conference (multiparty) call
  • Send SMS from CLI, asterisk manager and dialplan
  • Receive SMS (latin charset and multiline included)
  • Send USSD
  • Receive USSD (latin charset and multiline included)
  • Send DTMF (excluding A,B,C,D letters not supported by Huawei)
  • Receive DTMF