Does this still happen if you try just a few seconds/minutes after he
starts linphone on his android phone?
On Jan 15, 2012 5:36 PM, "Gerhard Stengel" <[email protected]> wrote:

> Hi,
>
> I've the problem that I can't reach a friend who has Linphone 1.2.2
> running on
> Android 2.3.3 from my PC (running Linphone 3.5.0 on Linux). Linphone tries
> to
> establish the connection but obviously it's not ringing on the other side
> (it's just sending out invites, but there's never a reply from the other
> side).
>
> If he calls me first, I can call him back. This sounds very similar to a
> firewall problem, i.e. the necessary port become unblocked by him calling
> me
> first. So my somewhat stupid question: does an Android phone have a
> firewall?
> If so, how can I change it to set the necessary port forwarding?
>
> We have both linphone.org accounts.
>
> best regards
>
> Gerhard
>
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