I had 2 each at ATT and Cingular. I thought retention departments would bend over backwards but they didn't.
I switchd to Sprint business plan with 5 phones for $150 or 4 phones for $130. The plan has 2000 shared anytime minutes, 2000 offpeak shared minutes and 2000 shared PCS to PCS minutes, jokingly called moron to moron communicaitons in our company when it cost over $60 per hour in the past.