02-26-2008 10:17 PM - edited 03-15-2019 09:06 AM
Hello,
Do you a sample configuration for EVM-HD-8FXS/DID? I have analog phones connected to this device but i don't hear the dial-tone.
Please help.
Thank you,
Ricky
02-27-2008 02:08 AM
Hi, do you have DSP modules in the router ? Please check with "show diag".
02-27-2008 02:17 AM
Thanks for your help. Regarding your question, yes i have a PVDM2-48 currently installed in my 2851.
02-27-2008 04:32 AM
Ok, then unless you have all the DSPs taken for other voice ports, you should have dialtone by default.
Are you using the recommended blackbox patch panel w/ RJ21 cable ?
You can check what the FXS port does with "debug vpm signal" and "term mon".
02-27-2008 06:03 AM
Thanks for your reply. How do i know i already exhausted all my DSP resources? I'm not using the recommended blackbox patch panel.
02-27-2008 06:43 AM
If the voice-ports for the module appears in configuration, there is no DSP issue.
The other possibility is that the patch panel you're using is not cabled correctly. The pinout is in the network module documentation.
02-27-2008 07:05 AM
All the voice-ports are appearing in the configuration. We will double-check if the patch panel is cabled correctly.
Thank you.
02-28-2008 02:57 AM
You are correct, the patch panel was not cabled correctly. Now, i can hear the dial-tone and can make calls to other analog phones connected to the same EVM-HD-8FXS/DID. However, when i dial an ip phone from the analog phone i always get a busy tone. I already configured a dial-peer voice XXX voip to route calls to the CM but i got the same result.
Am i still missing some configurations in my router?
02-28-2008 03:41 AM
Are you using h323 or mgcp with cm? Is this router configured as a gateway of some sort into cm ?
02-28-2008 02:26 PM
Thanks for your reply. The router is configured as the wan router and the voice gateway at the same time. Also, the router is using H323.
02-28-2008 02:48 PM
Under the voip dp, configure codec g711u to begin with. Then if you need to use g729, there is chapter about that in CM's documentation.
02-28-2008 05:47 PM
I already had that configure before. Below is my voip dp:
dial-peer voice 101 voip
preference 1
destination-pattern 9999....
progress_ind setup enable 3
voice-class codec 100
voice-class h323 1
session target ipv4:xxx.xxx.xxx.xxx
dtmf-relay h245-alphanumeric
no vad
What else am i missing?
02-29-2008 03:29 AM
May be the voice-class has a wrong codec preference. Use fixed g711u, that is usually the best choice.
02-29-2008 06:25 AM
Below is my voice-class configuration:
voice class codec 100
codec preference 1 g711ulaw
codec preference 2 g729r8
codec preference 3 g729br8
Do i need to change anything from the list?
02-29-2008 08:42 AM
Seems ok, still I would try a fixed codec as mentioned above.
Failing that, you need to take traces either on the GW (debug cch323 - warning, can be quite verbose), or on the CCM, unfortunately on the latter I can't help.
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