# Use 4g Modem as a trunk 

**URL:** <https://forums.vitalpbx.org/t/use-4g-modem-as-a-trunk/4391>\
**Category:** VitalPBX\
**Created:** [August 20, 2024, 9:45pm UTC](https://forums.vitalpbx.org/t/use-4g-modem-as-a-trunk/4391 "2024-08-20T21:45:26Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![jatin](https://forums.vitalpbx.org/user_avatar/forums.vitalpbx.org/jatin/32/2662_2.png) [@jatin](https://forums.vitalpbx.org/u/jatin)\
**Post date:** [August 20, 2024, 9:45pm UTC](https://forums.vitalpbx.org/t/use-4g-modem-as-a-trunk/4391/1 "2024-08-20T21:45:26Z")

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Hi there, I have Huawei E3372-607 4g Usb Modem, I would like to use as a trunk for outgoing call using SIM card. Is it possible? and if yes how can I do it. As far as I know this modem support voice. So please help me in this regards.

Thanks

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**Author:** ![miguel](https://forums.vitalpbx.org/user_avatar/forums.vitalpbx.org/miguel/32/415_2.png) [@miguel](https://forums.vitalpbx.org/u/miguel)\
**Post date:** [August 21, 2024, 3:25am UTC](https://forums.vitalpbx.org/t/use-4g-modem-as-a-trunk/4391/2 "2024-08-21T03:25:18Z")

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Can you connect the modem to the PBX as an IP trunk?

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**Author:** ![jatin](https://forums.vitalpbx.org/user_avatar/forums.vitalpbx.org/jatin/32/2662_2.png) [@jatin](https://forums.vitalpbx.org/u/jatin)\
**Post date:** [August 21, 2024, 7:46am UTC](https://forums.vitalpbx.org/t/use-4g-modem-as-a-trunk/4391/3 "2024-08-21T07:46:51Z")

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Hi sorry if I didn’t make it clear, so I have Vitalpbx installed on raspberry pi 4 and I was asking if I connect 4g voice modem to same pi. How can I setup as a trunk to make call. Apparently the usb modem that I mentioned supports voice call.

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**Author:** ![miguel](https://forums.vitalpbx.org/user_avatar/forums.vitalpbx.org/miguel/32/415_2.png) [@miguel](https://forums.vitalpbx.org/u/miguel)\
**Post date:** [August 21, 2024, 2:57pm UTC](https://forums.vitalpbx.org/t/use-4g-modem-as-a-trunk/4391/4 "2024-08-21T14:57:29Z")

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I don’t have the exact instructions, but you might need to enable certain modules on Asterisk to make it work.

However, VitalPBX doesn’t support this natively!

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**Author:** ![jatin](https://forums.vitalpbx.org/user_avatar/forums.vitalpbx.org/jatin/32/2662_2.png) [@jatin](https://forums.vitalpbx.org/u/jatin)\
**Post date:** [August 23, 2024, 1:55pm UTC](https://forums.vitalpbx.org/t/use-4g-modem-as-a-trunk/4391/5 "2024-08-23T13:55:30Z")

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Thanks Miguel for the suggestion, I have a another question, if I have a 4g hat for raspberry pi with sim cards, is there anyway to use that as a trunk?

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**Author:** ![mohamed.soliman](https://forums.vitalpbx.org/letter_avatar_proxy/v4/letter/m/85e7bf/32.png) [@mohamed.soliman](https://forums.vitalpbx.org/u/mohamed.soliman)\
**Post date:** [August 23, 2024, 10:02pm UTC](https://forums.vitalpbx.org/t/use-4g-modem-as-a-trunk/4391/6 "2024-08-23T22:02:58Z")

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I think debian 11 will not be compatible with compiling chan\_dongle.so module for asterisk

In v3 we already compiled and using it after upgrading to v4 not possible,  
If any furter instructions keep me in track

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**Author:** ![system](https://forums.vitalpbx.org/uploads/default/original/1X/672b458a1d454755270c2c16adc5316b641c3c6a.png) [@system](https://forums.vitalpbx.org/u/system)\
**Post date:** [September 22, 2024, 10:03pm UTC](https://forums.vitalpbx.org/t/use-4g-modem-as-a-trunk/4391/7 "2024-09-22T22:03:54Z")

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