A solution, not based on VPN but on WebPush, is proposed for the delivery of call control features ( basic or enhanced) to users when connected to a corporate LAN, or working at home when a call server is in the cloud, ie when Signaling and Media are delivered in an IP environment. Signaling is often proprietary ( i.e.: not standardized) and Media uses UDP which is often blocked by NAT/Firewalls.

Creative Commons License

Creative Commons License
This work is licensed under a Creative Commons Attribution 4.0 License.