Not sure if you guys are interested (prolly someone already did it), but after few tests I managed how to setup a Skype Manager trunk.
New Trunk:
General>Number> Skype_Manager
Advanced>Alias>Skype_Manager
Annex>
[AuthClient]
password=yourpass
username=yourusername
[TServer]
authenticate-requests=register, invite
contact=sip:[email removed]
display-name=Skype_Manager
force-register=sip:[email removed]
override-domain=sip.skype.com
override-domain-from=sip.skype.com
password=yourpassword
registrar-default-timeout=3600
sip-from-pass-through=true
sip-preserve-contact=true
sip-proxy-uri-parameters=true
subscribe-presence-domain=sip.skype.com
subscribe-presence-from=sip:[email removed]
use-display-name=true
username=username