You can use transcoding resources available on a separate chassis with CME. You can go upto 5 sdspfarm sessions. CME will share all available resources.
CME configs:
ip source-address 10.1.11.4 port 2000 ———– 10.1.11.4 is the CME router.
sdspfarm units 2
sdspfarm transcode sessions 2
sdspfarm tag 1 mtp0013c3443150 —- this transcoder is on the same box as CME. Lets call this trancoder 1. This is on NM-HDV2
sdspfarm tag 2 mtp0009b7da6540 —- this transcoder is on a different box. Lets call this transcoder 2. This is on NM-HDV
Transcoder 1 configs:
voice-card 1
dspfarm
dsp service dspfarm
sccp local FastEthernet0/0
sccp ccm 10.1.11.4 identifier 1
sccp
!
sccp ccm group 1
associate ccm 1 priority 1
associate profile 1 register mtp0013c3443150
!
dspfarm profile 1 transcode
codec g711ulaw
codec g711alaw
codec g729ar8
codec g729abr8
codec gsmfr
codec g729r8
codec g729br8 ————— g729r8 and g729br8 are not there by default
maximum sessions 1
associate application SCCP
Transcoder 2 configs:
voice-card 1
dsp service dspfarm
sccp local FastEthernet0/0
sccp
sccp ccm 10.10.10.1 priority 1
!
dspfarm transcoder maximum sessions 4
dspfarm
!
Two calls were placed to force the transcoding and CME did utilize each transcoder (The number of transcoding sessions per transcoder was set to 1)
sh sccp connection output on Transcoder 1: (call1)
PSTNSw#sh sccp conn
sess_id conn_id stype mode codec ripaddr rport sport
1 1 xcode sendrecv g729 10.1.11.4 2000 17040
1 2 xcode sendrecv g711u 10.1.11.4 2000 16416
Total number of active session(s) 1, and connection(s) 2
sh sccp connection output on Transcoder 2: (call2)
br2#sh sccp conn
sess_id conn_id stype mode codec ripaddr rport sport
3 3 xcode sendrecv g729 10.1.11.4 2000 18014
3 4 xcode sendrecv g711u 10.1.11.4 2000 19080
Total number of active session(s) 1, and connection(s) 2
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I tried the NM-HDV configuration in my lab (I have a CME on a 3745) with the NM-HDV local and am having an issue where if I do a show sccp connection it shows the transcoding sessions, but I’m getting no audio on my call (I’m calling from a CCM phone through H323 to CME and into voicemail). Any suggestions? I checked the configuration that you have listed and mine pretty much matches up (with the obvious exception of mac addresses, etc).
hi.i like transcoding notes
hello everybody.i have some quaries about the transcoding.how to give codecs target parameters.i want to list of codecs.wanna codecs resolution.
Hi I have this configuration on my CME but transcoding don´t work.
The call to 9517 phone still goes in g711ulaw and I need it in g729r8.
command sh sccp conn output is blank.
Someone can help me?
Thanks in advance!
version 15.1
hostname CME-cue
!
voice service voip
allow-connections h323 to h323
allow-connections h323 to sip
allow-connections sip to h323
allow-connections sip to sip
no supplementary-service sip moved-temporarily
no supplementary-service sip refer
sip
registrar server expires max 120 min 60
!
voice class codec 3
codec preference 1 g729r8
codec preference 2 g729br8
codec preference 3 g711ulaw
codec preference 4 g711alaw
!
!
voice-card 0
interface FastEthernet0/0
ip address 10.59.4.27 255.255.255.0
duplex auto
speed auto
h323-gateway voip bind srcaddr 10.59.4.27
!
interface Service-Engine0/1
ip unnumbered FastEthernet0/0
service-module ip address 10.59.4.28 255.255.255.0
service-module ip default-gateway 10.59.4.27
!
ip forward-protocol nd
!
ip route 10.59.4.28 255.255.255.255 Service-Engine0/1
!
sccp local FastEthernet0/0
sccp ccm 10.59.4.27 identifier 1 version 7.0
sccp
!
sccp ccm group 1
bind interface FastEthernet0/0
associate ccm 1 priority 1
associate profile 1 register mtp001e13753968
!
dspfarm profile 1 transcode
codec g711ulaw
codec g711alaw
codec g729ar8
codec g729br8
codec g729r8
maximum sessions 10
associate application SCCP
!
dial-peer voice 1111 voip
destination-pattern 2007
session protocol sipv2
session target ipv4:10.59.4.28
dtmf-relay sip-notify
codec g711ulaw
no vad
!
dial-peer voice 9517 voip
destination-pattern 9517
session target ipv4:192.168.104.2
voice-class codec 3
dtmf-relay h245-alphanumeric
no vad
!
dial-peer voice 2007 voip
session protocol sipv2
session target ipv4:IPCCM
incoming called-number 2007
codec g711ulaw
!
!
!
telephony-service
ip source-address 10.59.4.27 port 2000
max-conferences 4 gain -6
transfer-system full-consul