The SRI 12 and SRI 12 II feature a 12 inch touch screen in a 5U rack mount enclosure. They are rack mount versions of the SDI-12 and SDI-12II. These consoles run GT software and display 4 pages of 24 line keys (96 total). Design features include a handset cradle, blue ringing/alert indicator light, and two multi-purpose knobs. An integrated 20W speaker provides ample volume even in high background noise environments. There are two headset jacks in the body with an option for an external jack box with two more jacks. The single color SRI-12 is an “all-in-one” design with all components in one enclosure. The red/black SRI-12 II consists of a headend display/control unit (same as pictured above) coupled with an SDAP. The headend and SDAP are connected by a CAT5e cable up to 150’ in length. The SRI-12 and SRI-12 II connect to the MVP switch over an IP network or using a T1 line and a KTMX.