# WebRTC behind firewall (SQUID Reverse Proxy / Sophos UTM Help)

**URL:** https://forums.vitalpbx.org/t/webrtc-behind-firewall-squid-reverse-proxy-sophos-utm-help/1912
**Category:** VitXi WebRTC
**Created:** [October 24, 2022, 8:27pm UTC](https://forums.vitalpbx.org/t/webrtc-behind-firewall-squid-reverse-proxy-sophos-utm-help/1912 "2022-10-24T20:27:22Z")
**Posts on this page:** 1
**Showing post:** 13

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### Author: ![mo10](https://forums.vitalpbx.org/letter_avatar_proxy/v4/letter/m/58f4c7/32.png) [@mo10](https://forums.vitalpbx.org/u/mo10)
#### Post date: [November 7, 2022, 2:06pm UTC](https://forums.vitalpbx.org/t/webrtc-behind-firewall-squid-reverse-proxy-sophos-utm-help/1912/13 "2022-11-07T14:06:53Z")

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> [@david.henry](#):
>
> except VitalPBX Mobile

Did you do ALL this?

> [@How to correctly configure VitalPBX Mobile](https://forums.vitalpbx.org/t/how-to-correctly-configure-vitalpbx-mobile/899):
>
> The new version of VitalPBX Mobile requires the following configuration to work correctly: You have to create a dedicated PJSIP account with two contacts as maximum. Don’t use the same account for other devices. e.g.: desktop phones or softphones. If you have a version earlier than 3.5.1-4 of VitalPBX, then disable the Push Notification option in VitalPBX. It is no longer necessary since the new App incorporates another methodology to do Push. On the App side, you only need to scan the QR code…

Allow the IP on your UTM as well!

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_[View the full topic](https://forums.vitalpbx.org/t/webrtc-behind-firewall-squid-reverse-proxy-sophos-utm-help/1912)._