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Cisco VISM Installation and Configuration Guide
Release 3.0, Part Number OL-2521-01 Rev. D0, June 2004
Chapter4 Configuring VISM Features
Configuring VISM Features
•2 = G.711u and G.711a codecs, and clear channel
Note The cnfcodectmpl command is included in the “Allocating Resources” section on page 4-9
but is included here for your convenience.
•3 = G.711u, G.711a, G.726-16k, G.726-24k, G.726-32k, G.726-40k, G.729 a, an d G .729a b c odecs ,
clear channel, and T.38 fax transfer
•4 = G.711u, G.711a, G. 726-16k, G.726-24k, G.726-32k, G.726-40k , G.729a, G.729ab, G.723.1-H,
G.723.1a-H, G.723.1-L, G.723.1a-L codecs and clear channel
Step 2 Type the cnfcodecparams command, codec-type, codec-pkt-period, |preference, codec-string, and
iana-type| argument values, and press Enter to specify various codec pa rame ter s f or use in t he VoIP
operating mode.
The packetization period is defined in three separate commands depending upon the ATM method used:
•Use the cnfcodecparams command for VoIP switching applications. Complete this step.
•Use the addcid command for AAL2 trunking applications. See the “Configuring AAL2 Trunking
Operating Mode Parameters” section on page 4-36.
•Use the addrtpcon command for AAL2 trunking applications.
•Use the cnfprofelemvoice command for switched AAL2 PVC applications. See the “Configuring
Switched AAL2 PVC Operating Mode Parameters” section on page 4-38.
Specify the arguments with the following values:
•codec-type: In the range from 1 to 14.
•codec-pkt-period:
–
10
–
20
–
30
–
40
–
60
•preference:
–
0 = Ignore preference
–
In the range from 1 (highest) to 13 (lowest).
•codec-string: In the range from 1 to 20 ASCII characters.
•iana-type (IANA registered codec type): In the range from 0 to 96.
Step 3 Type the cnfcodecneg command, the codec-priority argument value, and press Enter to specify a codec
preference order when there are several codec lists—from the call agent local connection option (LCO)
list, local MIB, or a list received from the remote gateway in the session description pr otocol (SDP) data.
Specify the codec-priority argument value with one of the following:
•1 = LCO list, remote SDP data list, local MIB
•2 = LCO list, local MIB, remote SDP data list
•3 = Remote SDP data list, LCO list, local MIB
•4 = Remote SDP data list, local MIB, LCO list