Symptom
SIP-TDM GW: Call attempts fail and trigger below error messages:
001272: *Sep 27 12:45:36.090: %FLEXDSPRM-3-TDM_CONNECT: failed to connect voice-port (0/2/0) to dsp_channel(2/0/1)
001273: *Sep 27 12:45:36.090: %FLEXDSPRM-3-TDM_CONNECT: failed to connect voice-port (0/2/1) to dsp_channel(2/0/0)
Conditions
Call attempts
HW: ISR4300 series, NIM E1 card
SW: isr4300-universalk9.16.03.04.SPA.bin
Workaround
voice-port 0/1/0
shut
timing delay-connect 20
no shut
Further Problem Description
The fix is platform independent. It is to fix a TDM hairpin voice application bug.
Issue not just restricted to E1 cards; it's platform independent.
Issue not only happen on SIP-TDM. It could happen on any hairpin voice.
