1 Sending Receiver Ready (0)
1
> [ 00 01 01 01 ]
1
> Supervisory frame:
1 > SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
1 > Zero: 0     S: 0 01: 1  [ RR (receive ready) ]
> N(R): 000 P/F: 1
> 0 bytes of data
1 -- Restarting T203 counter
    -- Zap/16-1 is proceeding passing it to Zap/44-1
    -- Zap/16-1 is ringing
1 -- Retrying poll with f-bit
1 -- Timeout occured, restarting PRI
1 Sending Set Asynchronous Balanced Mode Extended
1
> [ 00 01 7f ]
1
> Unnumbered frame:
1 > SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
1 >   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced mode extended) ]
> 0 bytes of data
  == Primary D-Channel on span 1 down
Jan 26 10:46:57 WARNING[16953]: chan_zap.c:2512 pri_find_dchan: No D-channels available!  Using Primary channel 3 as D-channel anyway!
1 Sending Set Asynchronous Balanced Mode Extended
1
> [ 00 01 7f ]
1
> Unnumbered frame:
1 > SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
1 >   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced mode extended) ]
> 0 bytes of data
    -- Zap/16-1 answered Zap/44-1
    -- Attempting native bridge of Zap/44-1 and Zap/16-1
1 Sending Set Asynchronous Balanced Mode Extended
1
> [ 00 01 7f ]
1
> Unnumbered frame:
1 > SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
1 >   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced mode extended) ]
> 0 bytes of data
1 Sending Set Asynchronous Balanced Mode Extended
1
> [ 00 01 7f ]
1
> Unnumbered frame:
1 > SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
1 >   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced mode extended) ]
> 0 bytes of data
  == Primary D-Channel on span 1 down
Jan 26 10:47:01 WARNING[16953]: chan_zap.c:2512 pri_find_dchan: No D-channels available!  Using Primary channel 3 as D-channel anyway!
1 Sending Set Asynchronous Balanced Mode Extended
1
> [ 00 01 7f ]
1
> Unnumbered frame:
1 > SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
1 >   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced mode extended) ]
> 0 bytes of data
1 Sending Set Asynchronous Balanced Mode Extended
1 terisk*CLI> pr
> [ 00 01 7f ]
1
> Unnumbered frame:
1 > SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
1 >   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced mode extended) ]
> 0 bytes of data
1 T203 counter expired in weird state 2
1 Sending Set Asynchronous Balanced Mode Extended
1
> [ 00 01 7f ]
1
> Unnumbered frame:
1 > SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
1 >   M3: 3   P/F: 1 M2: 3 11: 3  [ SABME (set asynchronous balanced mode extended) ]
> 0 bytes of data
asterisk*CLI> pri no debug span 1
Disabled debugging on span 1
  == Primary D-Channel on span 1 up
  == Primary D-Channel on span 1 up
  == Primary D-Channel on span 1 up
  == Primary D-Channel on span 1 up
    -- Channel 0/20, span 9 got hangup request
    -- Hungup 'Zap/16-1'