Answer
Sep 18, 2026 - 10:08 AM
Expansion module support allows users to add additional programmable keys for speed dials, contacts, or feature access, which is especially valuable for receptionists or users managing high call volumes. The best E Series phones, such as the Poly Edge E450 and Poly Edge E550, support one or two expansion modules, giving you room to scale as your needs grow. This flexibility means you can start with a standard phone and expand your capabilities as your business or workload increases, with several options available in the E Series lineup.
