https://ru.wordpress.org/plugins/telefinity-webrtc-sip-gateway/
TeleFinity WebRTC to SIP Gateway — Плагин для WordPress | WordPress.org Русский
Turns your website into a phone and let your abroad customers connect to your PBX /Call Center directly at zero-cost and without a telecom operator.
webrtcsipgatewaywordpress
https://www.frafos.com/?lang=de
WebRTC-Gateway und EAL4+ zertifizierter Cloud Ready SBC
VoIP Security: FRAFOS bündelt ein sicheres, Cloud Ready WebRTC Gateway mit Session Border Control (SBC) Lösungen für Provider und Unternehmen.
webrtc gatewaycloud readyundsbc
https://manuals.riedel.net/en/stage/2.1/webrtc-gateway-configuration
WebRTC Gateway Configuration | Riedel Product Manuals
To configure the WebRTC Gateway, see VSP WebRTC Gateway Configuration.
webrtc gatewayproduct manualsconfigurationriedel