> [ 02 b5 73 ]

> Unnumbered frame:
> SAPI: 00  C/R: 1 EA: 0
>  TEI: 090        EA: 1
>   M3: 3   P/F: 1 M2: 0 11: 3  [ UA (unnumbered acknowledgement) ]
> 0 bytes of data
-- Restarting T203 counter
-- Restarting T203 counter
  == Primary D-Channel on span 1 up
Urgent handler
T203 counter expired, sending RR and scheduling T203 again
Sending Receiver Ready (0)

> [ 00 b5 01 01 ]

> Supervisory frame:
> SAPI: 00  C/R: 0 EA: 0
>  TEI: 090        EA: 1
> Zero: 0     S: 0 01: 1  [ RR (receive ready) ]
> N(R): 000 P/F: 1
> 0 bytes of data
-- Restarting T203 counter
Urgent handler

< [ fe ff 03 0f 00 00 04 b5 ]

< Unnumbered frame:
< SAPI: 63  C/R: 1 EA: 0
<  TEI: 127        EA: 1
<   M3: 0   P/F: 0 M2: 0 11: 3  [ UI (unnumbered information) ]
< 5 bytes of data
received TEI check request for TEI = 90
Sending TEI check resp ri=56184 tei=90

> [ fc ff 03 0f db 78 05 b5 ]

> Unnumbered frame:
> SAPI: 63  C/R: 0 EA: 0
>  TEI: 127        EA: 1
>   M3: 0   P/F: 0 M2: 0 11: 3  [ UI (unnumbered information) ]
> 5 bytes of data
-- Restarting T203 counter
-- Restarting T203 counter
Urgent handler
T203 counter expired, sending RR and scheduling T203 again
Sending Receiver Ready (0)

> [ 00 b5 01 01 ]

> Supervisory frame:
> SAPI: 00  C/R: 0 EA: 0
>  TEI: 090        EA: 1
> Zero: 0     S: 0 01: 1  [ RR (receive ready) ]
> N(R): 000 P/F: 1
> 0 bytes of data
-- Restarting T203 counter
Urgent handler

< [ fe ff 03 0f 00 00 04 b5 ]

< Unnumbered frame:
< SAPI: 63  C/R: 1 EA: 0
<  TEI: 127        EA: 1
<   M3: 0   P/F: 0 M2: 0 11: 3  [ UI (unnumbered information) ]
< 5 bytes of data
received TEI check request for TEI = 90
Sending TEI check resp ri=18636 tei=90

> [ fc ff 03 0f 48 cc 05 b5 ]

> Unnumbered frame:
> SAPI: 63  C/R: 0 EA: 0
>  TEI: 127        EA: 1
>   M3: 0   P/F: 0 M2: 0 11: 3  [ UI (unnumbered information) ]
> 5 bytes of data
-- Restarting T203 counter
-- Restarting T203 counter
Urgent handler
T203 counter expired, sending RR and scheduling T203 again
Sending Receiver Ready (0)

> [ 00 b5 01 01 ]

> Supervisory frame:
> SAPI: 00  C/R: 0 EA: 0
>  TEI: 090        EA: 1
> Zero: 0     S: 0 01: 1  [ RR (receive ready) ]
> N(R): 000 P/F: 1
> 0 bytes of data
-- Restarting T203 counter
Urgent handler
-- Retrying poll with f-bit
Sending Receiver Ready (0)

> [ 00 b5 01 01 ]

> Supervisory frame:
> SAPI: 00  C/R: 0 EA: 0
>  TEI: 090        EA: 1
> Zero: 0     S: 0 01: 1  [ RR (receive ready) ]
> N(R): 000 P/F: 1
> 0 bytes of data
-- Restarting T203 counter
Urgent handler
-- Retrying poll with f-bit
Sending Receiver Ready (0)

> [ 00 b5 01 01 ]

> Supervisory frame:
> SAPI: 00  C/R: 0 EA: 0
>  TEI: 090        EA: 1
> Zero: 0     S: 0 01: 1  [ RR (receive ready) ]
> N(R): 000 P/F: 1
> 0 bytes of data
-- Restarting T203 counter
Urgent handler
Oct 28 13:36:55 DEBUG[-1226486864]: chan_sip.c:2395 sip_alloc: Allocating new SIP call for (null)
Oct 28 13:36:55 DEBUG[-1226486864]: chan_sip.c:2395 sip_alloc: Allocating new SIP call for (null)
Oct 28 13:36:55 DEBUG[-1226486864]: chan_sip.c:826 __sip_ack: Stopping retransmission on '5ad045ef41b76a2433c9c13b32ddfec3@192.168.1.17' of Request 102: Found
Oct 28 13:36:55 DEBUG[-1226486864]: chan_sip.c:826 __sip_ack: Stopping retransmission on '017ce7d12b895c3a1ea1a2a850a645ee@192.168.1.17' of Request 102: Found
-- Retrying poll with f-bit
-- Timeout occured, restarting PRI
Sending TEI Request ri=35132

> [ fc ff 03 0f 89 3c 01 ff ]

> Unnumbered frame:
> SAPI: 63  C/R: 0 EA: 0
>  TEI: 127        EA: 1
>   M3: 0   P/F: 0 M2: 0 11: 3  [ UI (unnumbered information) ]
> 5 bytes of data
  == Primary D-Channel on span 1 down
Oct 28 13:36:55 WARNING[-1237455952]: chan_zap.c:1992 pri_find_dchan: No D-channels available!  Using Primary on channel anyway 3!
Urgent handler
T203 counter expired in weird state 0
Urgent handler
Sending TEI Request ri=8550

> [ fc ff 03 0f 21 66 01 ff ]

> Unnumbered frame:
> SAPI: 63  C/R: 0 EA: 0
>  TEI: 127        EA: 1
>   M3: 0   P/F: 0 M2: 0 11: 3  [ UI (unnumbered information) ]
> 5 bytes of data
Urgent handler
Sending TEI Request ri=3181

> [ fc ff 03 0f 0c 6d 01 ff ]

> Unnumbered frame:
> SAPI: 63  C/R: 0 EA: 0
>  TEI: 127        EA: 1
>   M3: 0   P/F: 0 M2: 0 11: 3  [ UI (unnumbered information) ]
> 5 bytes of data
Urgent handler