The systems are analog telephone exchanges designed for small to medium businesses. The model numbers typically indicate their capacity: a 208 supports 2 outside (CO) lines and 8 extensions, while a 416 supports 4 CO lines and 16 extensions. Core Functionality
These systems automate internal and external communication, allowing multiple employees to share a limited number of public phone lines. Key operations include: EPABX System PBX telephone system CS series - Excelltel
Capacity: CS208(2 CO line, 8 Extension) CS308(3 CO line, 6 Extension) CS416(4 CO line, 16 Extension) Key feature: ◆Elegant design. www.excelltel.com TS-208/308/416 Telephone System Manual | PDF - Scribd