Brand: Tandberg
Based on the provided information, it is not clear if the term "Tandberg 13 (13-22)" is referring to a specific Tandberg product or if it's a categorization or label for multiple products. Tandberg was a Norwegian telecommunications company that focused on developing video conferencing, telephone systems, and audio equipment. Tandberg's products were typically labeled by model numbers, such as T310, T140, or Tloaded, to indicate their features and compatibility with specific network protocols. It's possible that "Tandberg 13" refers to a particular video conferencing solution, while the "13-22" is a sub-range or sub-model number. More context or additional information is needed to provide a definitive answer.