Tuesday, September 14, 2021

VOIP Desk Phone Over VPN

I am trying to solve an issue of connecting remote workers to a PBX in a base office. The goal is for remote users to be able to use their desk phones via VPN.

I tried connecting a PC to the VPN and then sharing the Ethernet connection and plugging in the phone to it. Doing this I can access the phone's GUI, by IP address, but cannot get it to connect with the PBX.

We considered giving everyone a VPN router with an IPSEC VPN back to the office, but some users are behind NAT. Is there anything I am missing with sharing the windows connection? Is there any device I can purchase that will connect via L2TP but give me an Ethernet port I can plug into?



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