zap show channel 2
Channel: 2CLI> 
File Descriptor: 12
Span: 1
Extension: LI> 
Dialing: no
Context: inbound
Caller ID: 
Calling TON: 0
Caller ID name: 
Destroy: 0
InAlarm: 0
Signalling Type: PRI Signalling
Radio: 0
Owner: Zap/2-1
Real: Zap/2-1
Callwait: <None>
Threeway: <None>
Confno: -1
Propagated Conference: -1
Real in conference: 0
DSP: yes
Relax DTMF: no
Dialing/CallwaitCAS: 0/0
Default law: ulaw
Fax Handled: no
Pulse phone: no
Echo Cancellation: 128 taps, currently ON
PRI Flags: Call 
PRI Logical Span: Implicit
Actual Confinfo: Num/0, Mode/0x0000
Actual Confmute: No
Hookstate (FXS only): Onhook
    -- Zap/3-1 is ringing