SBC to Launch Local Internet-Based Calling in 2005  WASHINGTON (Reuters) - SBC Communications &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=SBC.N qtype=sym infotype=info qcat=news"&gt;SBC.N&lt;/A&gt; will  introduce an Internet-based calling service for its local  telephone customers early next year and will consider offering  the service nationally later, the company said on Tuesday.