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TalkSwitch CT.TS001.104005 40-plus Upgrade Module is $385.99 at Amazon TalkSwitch CT.TS001.104005 40-plus Upgrade Module by TalkSwitch No customer reviews yet. Be the first. Share List Price: $450.00 Price: $385.99 & this item ships for FREE with Super Saver Shipping. Details You Save: $64.01 (14%) 3 new from $358.25 Technical Details Adds capacity for 4 local extensions Converts a TalkSwitch 244vs into a 284vs Product Details Product Dimensions: 10.5 x 9 x 3 inches ; 1 pounds Shipping Weight: 1 pounds (View shipping rates and policies) Shipping: This item is also available for shipping to select countries outside the U.S. ASIN: B000RL3ULI Item model number: CT.TS001.104005 Average Customer Review: No customer reviews yet. Be the first. Date first available at http://Amazon.com: June 5, 2007 Would you like to update product info, give feedback on images, or tell us about a lower price? Product Description Product Description The TalkSwitch 40plus Upgrade Kit adds capacity for 4 local extensions. It Converts a TalkSwitch 244vs into a 284vs. Source: http://www.amazon.com/TalkSwitch-CT-TS001-104005-40-plus-Upgrade-Module/dp/B000RL3ULI/ref=sr_1_1?ie=UTF8&s=electronics&qid=1284742013&sr=8-1