What Signaling Type Should I Set For Backup D Channel Trunk In Nfas?

[Guest chadfs]

hi,

 

In NFAS settings for DM3 boards, like boards DMV480A-2T1, I know for primary D channel trunk, the LinAdmin section, SignalingType (CAS=4, CCS=5, Clear=6) part, for primary D channel trunk, it should be set to CCS. For clear channel, it should be set to Clear. What about backup D channel trunk? Should I set it to CCS or Clear? Somehow remember I saw somehere in document says it need to be set to Clear. But in my test, I have to set it to CCS to bring the D channel up, otherwise, it will never come up. Does anyone have experience on that?

And also, does DMV480A-2T1 support the backup D channel?

 

Thanks.

[SupportTeam]

Backup D-Channels on NFAS setups are supported, but only when using certain protocols. Which Protocol is used on this system?

 

D-Channels should not be set as "Clear". Clear is used for a Voice channel.

 

Have you read this Tech Notes from Dialogic:

http://www.dialogic.com/support/helpweb/dx...s/new/tn934.htm

[Guest chadfs]

Backup D-Channels on NFAS setups are supported, but only when using certain protocols. Which Protocol is used on this system?

 

D-Channels should not be set as "Clear". Clear is used for a Voice channel.

 

Have you read this Tech Notes from Dialogic:

http://www.dialogic.com/support/helpweb/dx...s/new/tn934.htm

 

We are using 5ESS. I've read the tech note from Dialogic, but that note, it does not have a backup D channel example. So, backup D channel should be set to CCS.

[SupportTeam]

Sounds like the next step would be to install VoiceGuide v7.

 

How many cards are placed in this system? On which board/interface are the primary and backup D channels enabled?

 

I assume that the latest SR6.0 Service Update is used on this system?