The Mitel BB424 Button Expansion Module extends the capabilities of your Mitel 485G IP phone with additional programmable buttons and a color LCD display. The Mitel BB424 provides a total of 96 programmable buttons that can be used for directory numbers, speed dial, or feature keys. The BB424 is ideal for receptionists or users who handle heavy call volumes.
Monitor Line Status: Programmable softkeys support advanced features such as Monitor Call, Monitor Phone, and Speed Dial
Display: 272x480 pixel resolution, color backlit LCD display
Expandable: Up to 4 BB424 modules can be added per phone
Simplify Dialing: Programmable buttons can be used for directory numbers, speed dial, or feature keys
Mitel 485G IP Phone
When adding 1 BB424 - Powered through host phone, no additional power supply is needed
When adding 2-4 BB424 – Requires optional power supply (sold separately)
BB424 Expansion Module
We provide FREE UPS Ground shipping on any online order over $99. For online
orders totaling less than $99, UPS Ground shipping is only $9.95. The offer is
valid in the continental United States.
The vast majority of our orders are shipped the same day as placed. If there is
any significant delay in your order leaving our warehouse, you will be contacted
promptly by our customer service department.
We offer UPS Ground, UPS 3 Day Select, UPS 2 Day Air, UPS Next Day Air Saver,
and UPS Next Day Air.
UPS Ground - 1-5 days depending on delivery distance (see Ground services map
UPS 3 Day Select – by 4:30 p.m. third business day to most US addresses
UPS 2 Day Air - by 4:30 p.m. second business day to most US addresses
UPS Next Day Air Saver - by 4:30 p.m. next business day to most US addresses
UPS Next Day Air - by 10:00 a.m. next business day to most US addresses