Polycom IP
Polycom VVX EM50 Expansion Module for VVX 450 2200-48890-025
Description
Description
Polycom VVX EM50 Expansion Module for VVX 450
Expand your Polycom VVX 450 IP phone with the VVX EM50 expansion module β the ideal solution for receptionists, attendants, and power users who manage high call volumes. Get 90 programmable line keys across 3 pages with a vibrant 5" color LCD, all backed by Reef Telecom's industry-leading 10-year warranty.
Key Features
- 30 illuminated bi-color (red/green) LED programmable line keys β 90 keys across 3 page views
- 5" color TFT LCD display (480 x 800 WVGA resolution)
- Configurable as line registrations, call appearances, speed dial, DSS, or BLF
- Plug-and-play USB connection β powered through the VVX 450 host phone (PoE or AC adapter)
- Supports up to 2 EM50 modules per VVX 450 for up to 60 additional physical keys
- Compatible with Skype for Business presence
- Seamlessly matches the look and feel of the VVX 450
What's Included
- Polycom VVX EM50 Expansion Module (2200-48890-025 / 85X07AA)
- Desk stand, interconnection bracket, screws, and setup sheet
Compatibility
The VVX EM50 is designed exclusively for the Polycom VVX 450 business IP phone (requires UC Software 5.8.2 or later). Fully interoperable with Polycom partner IP telephony server solutions including SIP-based hosted and on-premise PBX platforms.
Free shipping on orders over $300. Every product from Reef Telecom is backed by our 10-year warranty for your peace of mind.
Specs & Details
Specs & Details
Shipping & Warranty
Shipping & Warranty
Free ground shipping on orders over $300. Same-day shipping on orders placed before 4PM EST.
All products include our industry-leading 10 Year Warranty backed by Reef Telecom.

Reef Telecom Proudly Supports
-
Ocearch
2026 Monthly Shark Hero -
Coral Restoration Foundation
2025 Staghorn Donor -
Ocean Conservancy
2025 Donor
Smart IT. Clean Oceans. Boundless Possibilities.
Our goal is providing the highest quality refurbished equipment to promote environmentally-conscious equipment usage through it's lifecycle.