Hope this is the right forum. We have a 3745 Voice gateway with dual-wic pri's in it and we are adding a 3rd PRI to this box. Is there a way to bond all of them together? Right now I believe we have the 2 pri's going over 1 D channel. Is there a way to add this new pri to this group? Hopefully this makes sense.
If you are trying to conserve B-channels, you can use nfas. However, in terms of bonding, you can achieve similar results by simply hunting across multiple PRIs. Inbound or outbound. The carrier configures the inbound hunt order, and you configure the outbound hunt order by dial-peer preference statements and "isdn bchannel-order" statements under your interface serial x/y:z configuration.
This approach doesn't save B-channels, but it does effectively & functionally "bond" several trunks together.
SIP traces provide key information in troubleshooting SIP Trunks, SIP
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Please find the attached HTML document, download and open it on your PC.
This provides an easy to use form where you simply answer a few
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