[SIPForum-discussion] Number of Channels in PRi

[Medve, Steve]

Hi Kumar;
            You can also use that single D channel to handle the signaling for multiple PRI's thereby getting the full 31+ if you have a collection of PRI's coming into your facility.
Even bigger connections are possible by using PRI pairing. IE: A dual PRI could have 24+23 = 47 B-channels and the single "1" D-channel (aka. "47B + D"), but more common approach has is to run 46 B-channels and 2 D-channels.  This allows a backup signaling channel in the event the main D channel fails. This philosophy also  applies to E1s too and can include more than 2 PRIs. Normally, no more than 2 D-channels are provisioned as additional PRIs are added to the group.


Hope this helps.

Steven A. Medve
smedve at redcom.com

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From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Gopalakrishnan A.N
Sent: Thursday, May 19, 2011 2:05 PM
To: tapender kumar
Cc: discussion at sipforum.org
Subject: Re: [SIPForum-discussion] Number of Channels in PRi

Hi Kumar,

E1 PRI will have 31 channels 30 B Channels and 1 D channel for signalling.
On Wed, May 18, 2011 at 7:27 PM, tapender kumar <tapender5002 at gmail.com<mailto:tapender5002 at gmail.com>> wrote:
Dear All,

Can u tell me about no of channels in PRI.We handle Railway PRI Traffic.We can use Veraz MediaGateways and Control Switch.in SS7 we have 30B+2D. one D channel for Synchronization.But in Case of our PRI traffic,PRI traffic is given in same network.I search on Google we get result as 30B+2D.

Is 1D Channel is required for Synchronization in our Railtel Network(Single Network).

Tell me ASAP.

--
With Regards,
Tapender Kumar
Contact No. - +91-9582945417
Mail Id. - tapender5002 at gmail.com<mailto:tapender5002 at gmail.com>





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--
Thank you  with regards,
Gopalakrishnan A.N.
VoIP call - sip:saigop at gtalk2voip.com<mailto:sip%3Asaigop at gtalk2voip.com>

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