TVOICE – IOS Gateway Debugging
H.323
show: dialplan number
debug: cch323 all, h225 asn, h225 a931, vtsp, dsp
(cc = call control)
H.323 Recap:
http://en.wikipedia.org/wiki/H.323
SIP
show: sip-ua status, sip-ua register status
debug ccsip: messages, error, all
MGCP
show: ccm-manager, mgcp endpoint, mgcp statistic, connection
debug mgcp: error, packet, state
debug ccm-manager events
30% of CCIE Lab = Troubleshooting!
Conditional IOS Debugging
- carrier-id (can tag traffic as coming from/to)
-voice source group (found in) (subnets can be set and then the carrier-id tag references the voice source group)
-trunk group (found in) (digital and analog circuits)
- call filter match-list 1 voice
-outgoing called-number 2065015111
- debug condition (run against match list)
- run your debug
FXO
‘debug vpm sig’ – FXO
‘debug voip ccapi inout’ This debug is useful anytime a voice call traverses a gateway. It’s our call control API debug, and is the bread and butter of troubleshooting IOS call routing, disconnects, etc.