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2x BRI voice 1x BRI data 2821

Typically on my 2821 routers I use :

1 E1 leased line (data)

1 BRI backup to leased line

1 E1 (ISDN-30) for PSTN/voice

I am configuring a router that only needs 4 voice channels (therefore PRI for voice is overkill).

Can I install a NM-4B-S/T and use 1 port for data backup BRI a 2 ports for PSTN BRI ? leaving one spare PRI port ?

Presumably this card can be used for voice or data traffic and the ports can be configured for different purposes ? Also, that card will fit in a 2821 wont it ?

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Re: 2x BRI voice 1x BRI data 2821

Hi ajenks,

Sorry the voice and data ISDN BRI cards are different. VIC or WIC for voice and adata respectively. These are the small cards and do not require a full network module slot, so you use a 2801 as well and fit up to 4.

Community Member

Re: 2x BRI voice 1x BRI data 2821

OK, thanks.

I am going to look at VIC2-2BRI-NT/TE= for the 2x BRI voice and stick with the WIC-1B-S/T-V3= data for single BRI data.


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