One possible reason is insufficient permissions in /etc/asterisk/manager.conf,

Try adding "all" both to read/write and reload asterisk, then try again. The actual permission required is "originate" for asterisk versions greater than 1.4, but in trixbox distros the manager permissions are broken so you should better use "all" if you want a fully functional fop2.

Best regards,

Ok, I understand now.

When you originate a call, your phone will ring first, once you pickup, it will ring the other leg. That is normal and expected behavior.

If you pickup your phone and nothing happens, it is because the destination button has an incorrect or incomplete extension and context setting. Be sure buttons have the proper extension=xxx and context=yyy, you should be able to ring that extension by matching that xxx extension in the asterisk dialplan yyy context, if not, the call or transfer will fail.

I do not know your dialplan, so I cannot tell you what to write. In the asterisk dialplan you have a context where you can reach your extensions via their extension numbers. In FreePBX you can reach them from the context "from-internal". In a vanilla asterisk install is up to you, I cannot tell you what your contexts are, suppose you have in extensions.conf something like

[default]
exten => 100,1,Dial(SIP/100)
exten => 100,n,Hangup

exten => 101,1,Dial(SIP/101)
exten => 101,n,Hangup

So you can reach extensions 100 and 101 from context "default". In that case, in your buttons.cfg file for fop2 you must use:

[SIP/100]
type=extension
label=John
extension=100
context=default

[SIP/101]
type=extension
label=Mary
extension=101
context=default

If you omit or put an invalid extension@context for your buttons, you won't be able to transfer or originate calls...

Hi Jimmy,

I posted a fully working sample before, both extensions.conf for your simple dialplan in asterisk, and the buttons.cfg for fop2 that matches it.