Question : Is it possible to do the transcoding by a stand alone Cisco 2811 with PVDM2-64?

I have a stand alone Cisco 2811 with PVDM2-64 (no CCM in our network). My questions are list as follow:

1. Can I use this Cisco 2811 as a SIP call relay to relay the calls between those two end points?

2. Can I do transcoding on this router in this scenario?

If it is possible, can you show me the configuration? I really aprecaite it! Thanks!

Answer : Is it possible to do the transcoding by a stand alone Cisco 2811 with PVDM2-64?

it is doable and here is the configuration
voice-card 0
dsp service dspfarm

sccp local (interface that you are using)
sccp ccm x.x.x.x(the ip address of the above interface) iden 1
sccp

sccp ccm group 1
asso ccm 1 pri 1
asso profi 1 reg LOCAL_XCODE_1

dspfarm profile 1 transc
codec g729r
max sess (specify how many sessions do you want)
associate application sccp
no shut

telephony-service
max-ephone 1
max-dn 1
ip source-address x.x.x.x(ip of the interface that you are using)
create cnf
sdspfarm uni 1
sdspfarm tag 1 LOCAL_XCODE_1
sdspfarm trans max sess x


voice service voip
all con s t s

dial-peer voice 1 voip
destination-pattern 1111
session target ipv4:x.x.x.x
session protocol sip
codec g711u

dial-peer voice 2 voip
destination-pattern 1111
session target ipv4:x.x.x.x
session protocol sip
codec g729r

dial-peer voice 3 voip
incoming called .
codec g711u

dial-peer voice 4 voip
incoming called .


this configuration should work with your setup.
waiting for your reply