[asterisk-users] OT - Desktop SIP phone with OpenVPN client

[Anselm Martin Hoffmeister]

Am 21.01.2013 14:21, schrieb Olivier:
> Hello,
>
> I've seen some desktop SIP phones (Snom, Yealink) intregrate a VPN 
> (OpenVPN ?) client.
>
> Has someone experience to share about that particular feature ?
> Is this experience rather successful ?
>
> My underlying question is can one supervise and configure these 
> desktop phones, in teleworking environment ?
> Is DHCP required ?

With Snom phones, those need an underlying network connection (d'oh, you 
wouldn't guess :-). That can be configured just
like you are used to do it with snom phones - DHCP, fixed IP, whichever 
you like. They also need a reachable NTP server.

Then they will ( after booting) download the VPN config from your 
(hopefully protected) server and connect to the OpenVPN
server. Address assignment on the VPN link is done by the OpenVPN 
internal mechanism. You will be able to reach the
phone's web interface, afaik, both over its local address and the 
OpenVPN assigned one.

Make sure to either have your PBX on the machine with the OpenVPN daemon 
or add appropriate route configuration to the OpenVPN client config.

BR
AMH