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[Linphone-developers] Connection without proxy

From: Florian Ulivi
Subject: [Linphone-developers] Connection without proxy
Date: Tue, 24 Jul 2018 08:34:54 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.9.1


I am trying to connect two linphone based SIP clients without proxy. No
internet connection, local ad-hoc WiFi network. One Linux device spans
the net using hostapd and the other iOS device connects. For example,
the iOS devices invites using the IP Address in form "sip:<ip>:<port>"
and a SIP connection is established, but the RTP audio/video channels
are looping back. I guess this is because the from address is
"sip:address@hidden" and it connects the media streams to localhost
which in turn result in seeing/hearing one's video stream/audio stream.

After some investigation I came upon some bctoolbox methods to determine
the IP address. Is there any way to aid this function to procure the IP
of the WiFi, i.e. 'wlan0', interface and not 'lo'? Or any other way to
prevent locally looping media while no proxy is used?

Kind regards
Dr.-Ing. Florian Ulivi

SmartWireless GmbH & Co. KG
Robert-Perthel-Straße 45 | 50739 Köln | Germany
Tel.: +49 221 5349 772 | | address@hidden

Amtsgericht Wuppertal HRA 23796 | USt-ID: DE292644908
Geschäftsführer: Guido Meis, Andreas Fuhr
Persönlich haftende Gesellschafterin: SmartWireless Beteiligungs-GmbH
Amtsgericht Wuppertal HRB25321

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