> Informational frame:
> SAPI: 00  C/R: 0 EA: 0
>  TEI: 000        EA: 1
> N(S): 000   0: 0
> N(R): 001   P: 0
> 9 bytes of data
-- Restarting T203 counter
Stopping T_203 timer
Starting T_200 timer
> Protocol Discriminator: Q.931 (8)  len=9
> Call Ref: len= 2 (reference 138/0x8A) (Terminator)
> Message type: RELEASE COMPLETE (90)
> [08 02 81 d1]
> Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0) 0: 0   Location: Private network serving the local user (1)
>                  Ext: 1  Cause: Invalid call reference value (81), class = Invalid message (5) ]