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Transcode from alaw to ulaw for voicemail

Patrick Werner
Level 1
Level 1

Hi Community.

I have here an issue with the voicemail of a customer on a UC540. The UC is connected trough SIP and the default codec is alaw.

But the voicemail on the UC needs ulaw. I tried to transcode from alaw to ulaw, with the follwing commands but have no luck until now.

If i do a "call forward all 999" on a ephone-dn and try to call the ephone-dn i just get a fast busy tone. The rest is workng fine.

Relevat commands:

voice-card 0

dspfarm

dsp services dspfarm

sccp ccm 172.17.1.10 identifier 1 version 3.1

sccp

!

sccp ccm group 1

associate ccm 1 priority 1

associate profile 1 register UC540MTP

associate profile 2 register UC540TRANSCODE

associate profile 3 register UC540CONF

!

dspfarm profile 2 transcode

codec g711ulaw

codec g711alaw

codec g729ar8

codec g729abr8

codec g722-64

codec g729br8

codec g729r8

maximum sessions 10

associate application SCCP

!

dspfarm profile 3 conference

codec g729br8

codec g729r8

codec g729abr8

codec g729ar8

codec g711alaw

codec g711ulaw

maximum sessions 2

associate application SCCP

dspfarm profile 1 mtp

codec g711alaw

maximum sessions software 50

associate application SCCP

dial-peer voice 2000 voip

description ** cue voicemail pilot number **

destination-pattern 99.

session protocol sipv2

session target ipv4:172.17.1.11

dtmf-relay sip-notify

codec g711ulaw

no vad

Hope you can help, thanks in advance

1 Accepted Solution

Accepted Solutions

bkwon
Cisco Employee
Cisco Employee

- we recommend to use CCA to avoid any possible confguration errors

- need to register a local interfact to CME.

     sccp local loopback 0 -> better use loopback interface.

- make CME as dspfarm host  

telephony-service

sdspfarm conference mute-on 111 mute-off 222

sdspfarm units 5

sdspfarm transcode sessions 10

sdspfarm tag 1 UC540MTP

sdspfarm tag 2 UC540TRANSCODE

sdspfarm tag 3 UC540CONF

conference hardware

for the detail please refer to the CME command referece.

View solution in original post

5 Replies 5

bkwon
Cisco Employee
Cisco Employee

- we recommend to use CCA to avoid any possible confguration errors

- need to register a local interfact to CME.

     sccp local loopback 0 -> better use loopback interface.

- make CME as dspfarm host  

telephony-service

sdspfarm conference mute-on 111 mute-off 222

sdspfarm units 5

sdspfarm transcode sessions 10

sdspfarm tag 1 UC540MTP

sdspfarm tag 2 UC540TRANSCODE

sdspfarm tag 3 UC540CONF

conference hardware

for the detail please refer to the CME command referece.

Hi Bongsu

Does that mean i have just to add these lines and it works: ?

sccp local loopback 0

telephony-service

sdspfarm conference mute-on 111 mute-off 222

sdspfarm units 5

sdspfarm transcode sessions 10

sdspfarm tag 1 UC540MTP

sdspfarm tag 2 UC540TRANSCODE

sdspfarm tag 3 UC540CONF

conference hardware

Thanks for your help

without looking at your whole configuration, yes these CLIs will complete your dspfarm configuration at least.

Wooohooo, its working now. You're a genius. Thanks alot for your support.

:-)  good to know