Microsoft Certifies Interoute's SIP for Office Services

Microsoft has certified Interoute as the first European service provider to supply Session Initiation Protocol (SIP) trunking for Microsoft Office. Enterprises can now use Interoute One to make free computer to computer calls. Businesses can also avoid international roaming charges on all other calls.


Microsoft's certification of Interoute One means Interoute's customers can benefit from full Microsoft OCS R2 support. Interoute is also offering a free trial of outbound calling to OCS customers.
http://www.interouteone.com