Answer
Sep 18, 2026 - 10:12 AM
The number of line keys determines how many simultaneous calls, contacts, or features you can access at once, making it an important consideration for both small teams and busy professionals. More line keys offer increased flexibility for managing multiple calls, while fewer may suffice for lower call volumes. The Poly E Series ranges from 4-line keys on the Poly Edge E220 (up to 16 lines) to 12-line keys on the Poly Edge E550 (up to 48 lines), with options like the Poly Edge E450 providing 8-line keys. This variety ensures you can select a phone that matches your call handling needs, whether basic or advanced.
