To verify and troubleshoot this feature, use the following show commands.
Router# show sccp
SCCP Admin State: UP
Gateway IP Address: 10.13.40.157, Port Number: 2000
IP Precedence: 5
User Masked Codec list: None
Call Manager: 10.13.40.148, Port Number: 2000
Priority: N/A, Version: 6.0, Identifier: 1
Trustpoint: N/A
Router# show dspfarm profile 6
Dspfarm Profile Configuration
Profile ID = 6, Service = MTP, Resource ID = 1
Profile Description :
Profile Service Mode : Non Secure
Profile Admin State : UP
Profile Operation State : ACTIVE
Application : SCCP Status : ASSOCIATED
Resource Provider : NONE Status : NONE
Number of Resource Configured : 100
Number of Resource Available : 100
Hardware Configured Resources : 0
Hardware Available Resources : 0
Software Resources : 100
Codec Configuration
Codec : g711ulaw, Maximum Packetization Period : 30
Router# show dspfarm profile 2
Dspfarm Profile Configuration
Profile ID = 2, Service = MTP, Resource ID = 2
Profile Service Mode : secure
Trustpoint : IOSCA
TLS Version : v1.2
TLS Cipher : AES128-SHA
Profile Admin State : UP
Profile Operation State : ACTIVE
Application : SCCP Status : ASSOCIATED
Resource Provider : NONE Status : NONE
Total Number of Resources Configured : 8000
Total Number of Resources Available : 8000
Total Number of Resources Out of Service : 0
Total Number of Resources Active : 0
Hardware Configured Resources : 0
Hardware Resources Out of Service: 0
Software Configured Resources : 8000
Number of Hardware Resources Active : 0
Number of Software Resources Active : 0
Codec Configuration: num_of_codecs:2
Codec : pass-through, Maximum Packetization Period : 0
Codec : g711ulaw, Maximum Packetization Period : 30
Router# show sccp connections
sess_id conn_id stype mode codec ripaddr rport sport
16808048 16789079 mtp sendrecv g711u 10.13.40.20 17510 7242
16808048 16789078 mtp sendrecv g711u 10.13.40.157 6900 18050
For SMTP secure DTMF, the show sccp connections command displays the codec type (pass-th), the s-type (s-mtp), and information about the DTMF method (rfc2833_pthru):
Router# show sccp connections
sess_id conn_id stype mode codec sport rport ripaddr conn_id_tx dtmf_method
16791234 16777308 s-mtp sendrecv pass_th 8006 24610 172.18.153.37 rfc2833_pthru
16791234 16777306 s-mtp sendrecv pass_th 8004 17576 172.18.154.2 rfc2833_report
Total number of active session(s) 1, and connection(s) 2
Router# show rtpspi call
RTP Service Provider info:
No. CallId dstCallId Mode LocalRTP RmtRTP LocalIP RemoteIP SRTP
1 22 19 Snd-Rcv 7242 17510 0x90D080F 0x90D0814 0
2 19 22 Snd-Rcv 18050 6900 0x90D080F 0x90D080F 0
If SRTP DTMF interworking is active, the SRTP field shows a non-zero value:
Router# show rtpspi call
RTP Service Provider info:
No. CallId dstCallId Mode LocalRTP RmtRTP LocalIP RemoteIP SRTP
1 13 14 Snd-Rcv 8024 18270 0xA7A5355 0xAC129A02 1
2 14 13 Snd-Rcv 8026 24768 0xA7A5355 0xAC129925 1
Router# show voip rtp connections
VoIP RTP Port Usage Information
Max Ports Available: 30000, Ports Reserved: 100, Ports in Use: 102
Port range not configured, Min: 5500, Max: 65499
VoIP RTP active connections :
No. CallId dstCallId LocalRTP RmtRTP LocalIP RemoteIP
1 114 117 19822 24556 10.13.40.157 10.13.40.157
2 115 116 24556 19822 10.13.40.157 10.13.40.157
3 116 115 19176 52625 10.13.40.157 10.13.40.20
4 117 114 16526 52624 10.13.40.157 10.13.40.20
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Additional, more specific, show commands that can be used include the following:
-
show
sccp
connection
callid
-
show
sccp
connection
connid
-
show
sccp
connection
sessionid
-
show
rtpspi
call
callid
-
show
rtpspi
stat
callid
-
show
voip
rtp
connection
callid
-
show
voip
rtp
connection
type
-
show
platform hardware
qfp
active feature
sbc global
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To isolate specific problems, use the debug
sccp command: