XO Communications last week expanded the reach of its business VoIP services to small and midsize businesses with larger offices. The expansion broadens the market for XO's XOptions Flex service by extending availability to businesses with up to 160 emplXO Communications last week expanded\u00a0the reach of its business VoIP services to small and midsize businesses with large offices. The expansion broadens the market for XOptions Flex service by making it available to businesses with as many as 160 employees at each location - a market that XO says spans more than 4 million businesses nationwide and spends $50 billion annually on telecom. The extended service is available in Chicago, Dallas, Fort Lauderdale, Miami, Minneapolis\/St. Paul, Orlando, San Francisco and Tampa\/St. Petersburg\/Sarasota. It will be available nationwide by summer.