Hi I have just compiled asterisk zaptel and my analog card. The Problem is I can’t call zap to zap extension. Whenever I dial another zap extension number, upon pressing the first number I get a busy tone. My asterisk console displays
Starting simple switch on 'Zap/1-1' -- Hungup 'Zap/1-1'
What do I need to configure in order to make zap to zap extension calls.