DTS is now offering a new Cisco LAN Video product. You can view the product description here. DTS has approximately 3,000 IP Phones with video capability.
DTS enables video on IP Phones via campus LANs where the IP Phones reside. A campus LAN refers to co-located buildings served by one wide area network connection. IP Phones use video on the same LAN, which typically means the same campus. The LAN consists of networking switches that by definition have abundant bandwidth (almost unlimited), so there is little risk of using video on the LAN.
IP video service will only be turned on for specific site locations and be used for communication of people at that site only and not for communication between remote offices connected by wide area network circuits.