Phone Intergration w/Tessitura

At CST we're looking to upgrade our phone systems throughout our facility including our Box Office (in/outbound) and Call Center (outbound).  We thought that this would be an opportune time to investigate what other organizations have done to integrate their phone systems to Tessitura.  I know from a conference session that I attended a couple of years ago that Strafford has a pimped out system and I think would be too much for our needs at this point. 

So, if you have integrated your phones to Tessitura I would love to hear what you're using, what it does, what you wish it did, and any other information that you think wold be helpful.

Thanks in Advance