We have an old analog phone switch that we want to replace. At this time we still need to use the analog lines that are in place. We have around 1000 lines on our campus. They all terminate in a central location. I am very interested in using Asterisk. We would like to roll out IP phones but that might be down the road a bit. From what I have read we can use our analog phones with Asterisk if we use Analog Channel Banks. Is this practical for 1000 lines? If so who makes equipment like that? I am pretty new to Asterisk and phone stuff in general. Any info is great.