Jon Arnold Principal of J Arnold & Associates blog Search Unified Communications What is the difference between H.248 and H.323 protocols? 19 Dec 2013 Search Unified Communications What are the different types of private branch exchange systems? 20 Mar 2013 Search Unified Communications Are there advantages to using the public switched telephone network? 05 Mar 2013 Search Unified Communications The value of toll bypass in the enterprise 03 Aug 2010 1 2
