Back up connections / multitabling on dial up

[The Deuce]

I 10-table Party SnG's and have on multiple occasions been screwed over by my unreliable SBC DSL service which likes to just disconnect for various amounts of time when I'm on the bubble. So, I'm looking into getting a cheap dial up for a back up. I'm just unsure of how well a 56k connection could handle running 10 tables at once. Any help is much appreciated.