ive got some of my group on softphones.. others we set up L2TP server on a
MikroTik router at the home office and then sent them and their hard phones
home with another MikroTik set as L2TP client, we use the MikroTiks with POE
and 48 volt PS so they just plug in and go with their hardphones.. some people
want a better speakerphone.. Bria on a laptop is great till people use the
internal keyboard and type while on speaker... the L2TP tunnel provides
security for the RTP as it travels within.. we dont use OpenVPN so running
snoms with VPN firmware wasnt an option.. and i dont think the Aastras have VPN
at all.. or if they do ive never explored it..
On Monday, March 30, 2020, 8:45:13 AM EDT, Tom Chadwin
<tom.chad...@nnpa.org.uk> wrote:
Hi Christopher
> anchor the media at the asterisk server, so the directmedia = no on the SIP
> trunk, and in the SIP settings I needed to have my externip =
> my.public.ip.here and localnet = 172.16.0.5/255.255.252.0 (use your
> localnet).. it seems that the forward sends the Internal IP of asterisk in
> the redirect for the forward..
Yup, we're set up like this. Actually tried changing to directmedia=yes as an
experiment to see whether some local issue was the problem. Neither solves the
issue.
> I handle my forwarding a little different. I handle it on the server as
> opposed to the phone
Doesn't work very well for us, as we need users to be able to control
themselves, which they currently do via the endpoint web interfaces. I do note
your point about the phones needing to remain powered, though. On the first day
the office was shut, the caretaker went round and turned everything off.
> in one case. the SIP provider is velocity, I had to actually Answer(),
> establish audio then transfer the call before 2 way audio would establish..
> I accomplished this by answering then playing a quick "please hold" then
> sending the call off to the external number..
I read about this in an ancient (>10yrs) thread. If we have to go down this
route, we shall.
Thanks for the help and the info. Best way forward at the moment is probably to
avoid the whole matter and for us to get people up and running with softphones
(as we've done for another site). But I'd love to understand the issue...
Thanks again
Tom
Tom Chadwin, ICT Manager
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