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Rotary Group - ISDN

I'm reading about ISDN and I keep seeing reference to "rotary group". I can't seem to find any explanation on what exactly this is. I can see that it seems to be a combination of B-channels, but why the term rotary. Does it move from one channel to another?

Thanks.

D

1 REPLY
VIP Purple

Re: Rotary Group - ISDN

Hello,

I think the term rotary can indeed suggest that B-channels are switched based on availability, but that is not the case. A rotary group is basically a tool to have multiple physical BRI interfaces inherit the configurations from a Dialer interface, thereby easing the configuration process and avoiding human errors. Usually, in order for B-channels to be switched based on availability, you need to request a hunt group from the Telco, which lets incoming calls be dynamically routed to a free line on any of the interfaces in your rotary group.

Rotary groups are considered legacy, it is better to configure Dialer Profiles instead.

HTH,

Georg

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