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Community Member

CCME --> CCM VoIP Calls

Hi,

I am trying to configure VoIP dialling between CallManager Express and CallManager. On a phone registered to the CCM i am able to VoIP dial to a phone registered to the CME, however i am NOT able to dial from CME phone to CCM phone. I have the following dial-peer configured:

dial-peer voice 5001 voip

preference 1

destination-pattern 88390....

session target ipv4:CCM

dtmf-relay h245-alphanumeric

codec g711ulaw

no vad

!

I am trying to dial the number 883905700

I have a translation pattern set up in CCM for 883905[5-9]XX

Can anyone shed some light onto this issue for me?

10 REPLIES
Bronze

Re: CCME --> CCM VoIP Calls

Hi,

Some things to check:

1. Does the CCM (from the 'session target...') resolve to anything?

2. DO you have h.323 gateway configured on ccm which has the same ip that the cme will use to send voip traffic with?

3. Inbound CSS for that gateway?

Those are the most common issues.

HTH, Avner.

Community Member

Re: CCME --> CCM VoIP Calls

Hi,

1. I am using IP address of the CCM, which I can ping.

2. No, this is purely an H323 call between sites.

3. Inbound CSS has been set up correctly.

I have attached traces from calls going both ways - debug voip ccapi. Does this lend any assistance?

Thanks,

Bronze

Re: CCME --> CCM VoIP Calls

Can you post the full gateway config?

Also, how do you send calls from ccm to the cme, h.323 gw? ict?

let me know, Avner.

Community Member

Re: CCME --> CCM VoIP Calls

Attached here - If you can tell why my conferencing doesn't work as well, that would be great!

Bronze

Re: CCME --> CCM VoIP Calls

Hi,

Starting with the call routing issue, what address have you configured in ccm for this gateway (or trunk)? also what interface is the closest one to the ccm g 0/0 or g 0/1?

There are no ip route commands so i can't tell from the posted config.

As for the conference, the 'dsp farm profile' is configured to be 2, but the 'associate profile' refers to 1. The number has to be identical for that to work.

Let me know, Avner.

Community Member

Re: CCME --> CCM VoIP Calls

In CCM, the h323 gateway is configured to be 34.92.147.254.

On that router - the gi0/0 is on the cme & phones side, whereas the gi0/1 interface is on the CCM side.

I have also noticed that on the CME phone (when voip dialling from a CCME phone) the From: field is all weird characters, but is displayed clearly on the CCM phone.

DSP Status is now as shown:

Dspfarm Profile Configuration

Profile ID = 2, Service = CONFERENCING, Resource ID = 1

Profile Description :

Profile Admin State : UP

Profile Operation State : ACTIVE

Application : SCCP Status : ASSOCIATED

Resource Provider : FLEX_DSPRM Status : UP

Number of Resource Configured : 4

Number of Resource Available : 4

Codec Configuration

Codec : g711ulaw, Maximum Packetization Period : 30 , Transcoder: Not Required

Codec : g711alaw, Maximum Packetization Period : 30 , Transcoder: Not Required

Codec : g729ar8, Maximum Packetization Period : 60 , Transcoder: Not Required

Codec : g729abr8, Maximum Packetization Period : 60 , Transcoder: Not Required

Codec : g729r8, Maximum Packetization Period : 60 , Transcoder: Not Required

Codec : g729br8, Maximum Packetization Period : 60 , Transcoder: Not Required

But I still get 'No Conference Bridge" when attempting to create the meet-me...

Bronze

Re: CCME --> CCM VoIP Calls

That might be it, since ccm expects one ip and recieve the h323 from another (the nearest one), add the command 'h323-gateway voip bind srcaddr 34.92.147.254' to your g 0/0 interface configuration and see if that solves the call routing issue.

As for the meetme, try to add the command 'conference hardware' under the telephony-service', restart all and see if that helps.

If not send the output of 'show sccp', 'show ephone-dn conference' and 'show telephony-service conference hardware'.

regards, Avner.

Community Member

Re: CCME --> CCM VoIP Calls

Hi, Should that bind by on the G0/1 interface instead? It didn't make a difference on the g0/0 interface.

Conferencing show commands:

Router#sh ephone-dn conf

type active inactive numbers

=======================================

Meetme 0 2 3750

DN tags: 50

Meetme 0 2 3751

DN tags: 51

Meetme 0 2 3752

DN tags: 52

Meetme 0 2 3753

DN tags: 53

Router#sh telep

Router#sh telephony-service conf

Router#sh telephony-service conference hard

Conference Type Active Max Peak Master MasterPhone Last

cur(initial)

=================================================================================

Router#show sccp

SCCP Admin State: UP

Gateway IP Address: 34.92.147.254, Port Number: 2000

IP Precedence: 5

User Masked Codec list: None

Call Manager: 34.92.147.254, Port Number: 2000

Priority: N/A, Version: 4.1, Identifier: 100

Conferencing Oper State: ACTIVE - Cause Code: NONE

Active Call Manager: 34.92.147.254, Port Number: 2000

TCP Link Status: CONNECTED, Profile Identifier: 2

Reported Max Streams: 32, Reported Max OOS Streams: 0

Supported Codec: g711ulaw, Maximum Packetization Period: 30

Supported Codec: g711alaw, Maximum Packetization Period: 30

Supported Codec: g729ar8, Maximum Packetization Period: 60

Supported Codec: g729abr8, Maximum Packetization Period: 60

Supported Codec: g729r8, Maximum Packetization Period: 60

Supported Codec: g729br8, Maximum Packetization Period: 60

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

Community Member

Re: CCME --> CCM VoIP Calls

Well, I though I would post my latest update. Reading through the Administrator guide, I noticed the naming standards for SCCP groups always registered the DSPFARM profile as mtp

sccp ccm group 123

associate ccm 1 priority 1

associate profile 1 register mtp00097c5e9ce0

keepalive retries 5

!

So after changin this around - meet-me's now work! I now don't have ad-hoc conferencing ability, but I think seeing as I am using 'conference hardware' I need to create another DSPFARM profile for transcoding?

Also - after rebooting the router, VoIP calls wor as well! I still receive strange characters on the CME Calling-Line-Name however.

Does anyway else get this strange behaviour?

Thanks,

Community Member

Re: CCME --> CCM VoIP Calls

Try this command

voice service voip

allow connections h323 to h323

h323

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