Sten,

You likely have a server-side setup or configuration problem as the contact 
information for each device should be different (different IP’s, different 
ports). When configured correctly, a SIP server like Asterisk will forward an 
INVITE to all contacts that are registered for a given SIP username / number.

Germán





Sent from a mobile device
On 9 Mar 2021, at 16:32, Sten Kultakangas <[email protected]> wrote:


Hi
I'm having an issue with the users who start Linphone at one computer and 
forget to logout from Windows. Then they login to another computer and start 
the Linphone there.

Both Linphone instances are then competing for SIP registration leaving the 
other instance non-operational until the scheduled attempt to refresh the 
replaced registration.

Is there a way to make Linphone stop further registration attempts ? One 
admittedly hackish way is to make Linphone crash by sending an INVITE/UPDATE 
message related to an established call with a specially crafted Contact header 
containing the "isfocus" parameter as described here 
https://github.com/BelledonneCommunications/linphone-desktop/issues/475

However, this will only work if the server were able to place a call to a 
replaced contact which would require a lot of customization to the server code.

Best regards,
Sten Kultakangas

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