[How to upgrade licence ?]

Sorry for my poor english, i'm french....

 

I have Snom Blue Lience buy in 2011 and my own snom server.

Yesterday I try to use Yealink T41P on the server. All is ok, except transfer. In log, I have :

 

[7] 20161003181442: REFER from device type "Yealink SIP-T41P 36.80.0.130" is not supported in this product

And Google find my this post :

http://forum.vodia.com/index.php/topic/4849-call-transfer-didnt-with-new-pbxnsip-snom-version-40/

with this answer :

 

 

snom decided to support REFER only from snom products. You need snom ONE green in order to have this feature available. If you have a old pbxnsip license, you can as well use a pbxnsip build which does not have this restriction

 

So, how to upgrade my blue licence to green licence ? It's possible to have french support.

 

Regards.