Thank you for your responses. In essence I was wanting a simple yes or no answer: Can I put in a VIC2-2BRI card into the free slot on a UC540W-BRI-K9? Will the UC540 see the additional ports? I know that the UC560-BRI can support up to 6 BRI digital trunks - what I fail to see is how when it has 2 free VIC slots. If I place 2 x VIC2-2BRI cards - that should get me 4 digital trunks - where are the other two coming from? This uncertainty is confusing me and hence is leading to my confusion with the UC540-BRI. I could understand the support capability of 6 BRI if I could physically see 2 BRI ports like that you can see with the UC540-BRI but I have not seen such images.
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I am wondering if this is an acceptable configuration scenario? UC540W-BRI-K9 with a VIC2-BRI card I cannot find anywhere or know of anyone who has tried this configuration. How many simultaneous call would this scenario accept if I had ISDN2 service for each port? I've configured a UC520 that had a single 2 port BRI card. Each port was running an ISDN2 service, meaning I could get 4 "lines" or calls simultaneously coming in and out. The technical specs suggest the UC540 can support 2 to 4 digital trunks. I am hoping that I can get up to 8 "lines" if the above scenario is possible using ISDN2 service on each BRI port.
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