WAN April 2016 • 5 min read What is an EFM circuit? What is an EFM circuit? EFM stands for Ethernet in the First Mile. EFM refers to a type of circuit that uses multiple copper pairs to...
March 2012 • 5 min read How many SIP Trunks do I need? When planning your SIP implementation, the most frequently asked question is “How many SIP trunks do I need?”