[Asterisk-Users] Zap channels busy. Have to soft hangup.

[Thomas]

Hey everybody

I am having really bad nightmares about this. Every day now our phone
system has all of it's 4 zap channels full. I have to soft hangup
zap/1-1 and zap/3-1.

voip*CLI> show channels
        Channel  (Context    Extension    Pri )   State Appl.        
Data
        Zap/4-1  (default    s            1   )      Up Bridged Call 
Zap/3-1
        Zap/3-1  (intern-post 9411         1   )      Up Dial         
Zap/g1/411|70
        Zap/2-1  (default    s            1   )      Up Bridged Call 
Zap/1-1
        Zap/1-1  (intern-post 914105702452 1   )      Up Dial         
Zap/g1/14105702452|70
4 active channel(s)

voip*CLI> soft hangup zap/1-1
Requested Hangup on channel 'Zap/1-1'
    -- Hungup 'Zap/2-1'
  == Spawn extension (intern-post, 914105702452, 1) exited non-zero on 'Zap/1-1'
    -- Hungup 'Zap/1-1'
voip*CLI> soft hangup zap/1-2
zap/1-2 is not a known channel
voip*CLI> show channels
        Channel  (Context    Extension    Pri )   State Appl.        
Data
        Zap/4-1  (default    s            1   )      Up Bridged Call 
Zap/3-1
        Zap/3-1  (intern-post 9411         1   )      Up Dial         
Zap/g1/411|70
2 active channel(s)
voip*CLI> soft hangup Zap/4-1
Requested Hangup on channel 'Zap/4-1'
    -- Hungup 'Zap/4-1'
  == Spawn extension (intern-post, 9411, 1) exited non-zero on 'Zap/3-1'
    -- Hungup 'Zap/3-1'
voip*CLI> 

Also I have this weird thing where line Zap/3-1 rings and Zap/4-1 also
picks up. Or if I dial an outside number if somebody dials in at the
same time it happens that instead of dialing out I get the person who
just dialed in. Rather confusing for both of us.

Honestly I did dig around a lot and could not find any specifics about my issue.

Any help highly appreciated. 

-- Thomas