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New Member

IP2IP(CUBE) and transcoding

Hi!

I have the CUBE router recieving h.323 calls from Provider, codec is g729. I need to configure IVR(vxml) support on this router on incoming calls, IVR uses g711alaw codec. How should I configure DSP resources for this task?

I have read about universal transcoding and here is my config:

/*

voice-card 0

no dspfarm

dsp services dspfarm

...

voice service voip

allow-connections h323 to h323

...

application

service myclock flash:/100/100.vxml

...

sccp local FastEthernet0/0

sccp ccm XX.XX.XX.XX identifier 1

sccp

!

sccp ccm group 1

associate ccm 1 priority 1

associate profile 10 register MTPXXV000

associate profile 20 register MTPXXVIII

keepalive retries 5

switchback method immediate

!

dspfarm profile 20 transcode universal

codec g711ulaw

codec g711alaw

codec ilbc

codec g723r63

codec g723r53

codec gsmamr-nb

codec g729ar8

codec g729abr8

codec g729r8

maximum sessions 2

associate application SCCP

!

dspfarm profile 10 transcode

codec g711ulaw

codec g711alaw

codec ilbc

codec g723r63

codec g723r53

codec gsmamr-nb

codec g729ar8

codec g729abr8

codec g729r8

maximum sessions 2

associate application SCCP

...

telephony-service

sdspfarm units 2

sdspfarm transcode sessions 30

sdspfarm tag 1 MTPXXVIII

sdspfarm tag 2 MTPXXV000

max-ephones 20

max-dn 20

ip source-address XX.XX.XX.XX port 2000

max-conferences 12 gain -6

transfer-system full-consult

create cnf-files version-stamp 7960 Apr 06 2009 08:48:41

Dial-peers:

voice translation-rule 1

rule 1 /84955555555/ /999/

!

!

voice translation-profile 1

translate called 1

dial-peer voice 1 voip

description to_IVR

service myclock

destination-pattern 999

session target ipv4:62.117.78.213

incoming called-number 999

codec g711alaw

!

dial-peer voice 3 voip

description -=cellular=-

destination-pattern 89167396844

session target ipv4:212.48.128.217

!

dial-peer voice 2 voip

description incoming_peer

translation-profile incoming 1

incoming called-number 84955555555

PS:CUBE is a cisco 2811 with PVDM2-16.

IOS:c2800nm-advipservicesk9-mz.124-11.XW10.bin

Although DSP profiles are registered, but they are not beeing activated while calls ocure. The calling party hears fast busy.

3 REPLIES

Re: IP2IP(CUBE) and transcoding

Does 'show sccp' show them as registered?

And are you sure you're running into a codec problem (cause=47) and not some other problem causing fast busy?

-nick

New Member

Re: IP2IP(CUBE) and transcoding

vxml#sh sccp

SCCP Admin State: UP

Gateway IP Address: XX.XX.XX.XX, Port Number: 2000

IP Precedence: 5

User Masked Codec list: None

Call Manager: XX.XX.XX.XX, Port Number: 2000

Priority: N/A, Version: 3.1, Identifier: 1

Trustpoint: N/A

Transcoding Oper State: ACTIVE - Cause Code: NONE

Active Call Manager: 62.117.78.213, Port Number: 2000

TCP Link Status: CONNECTED, Profile Identifier: 10

Reported Max Streams: 12, Reported Max OOS Streams: 0

Supported Codec: g711alaw, Maximum Packetization Period: 30

Supported Codec: g729r8, Maximum Packetization Period: 60

Supported Codec: g729br8, Maximum Packetization Period: 60

Supported Codec: g729abr8, Maximum Packetization Period: 60

Supported Codec: ilbc, Maximum Packetization Period: 60

Supported Codec: g729ar8, Maximum Packetization Period: 60

Supported Codec: g711ulaw, Maximum Packetization Period: 30

Supported Codec: rfc2833 dtmf, Maximum Packetization Period: 30

Supported Codec: rfc2833 pass-thru, Maximum Packetization Period: 30

Supported Codec: inband-dtmf to rfc2833 conversion, Maximum Packetization Period: 30

New Member

Re: IP2IP(CUBE) and transcoding

I faced this transcoding issue and changing IOS to Version 12.4(15)T8 resolve it.

Original IOS version was 12.4.11 T3.

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