Phone:
Expansion modules for receptionists and high-volume users. $2/month with free replacement.
A sidecar (or attendant console) attaches to your desk phone and adds extra programmable buttons. Use them for one-touch speed dials, BLF (busy lamp field) to see who's on a call, line appearances, or feature shortcuts. Essential for receptionists and anyone handling high call volumes.
32-Button Expansion Module
Best for: Receptionists, operators, call centers
15-Button Expansion Module
Best for: Managers, team leads, moderate call volume
See at a glance who's on a call, available, or away. Green = free, red = busy.
One-touch dialing for frequently called numbers—internal extensions or external contacts.
Transfer calls with one button press. See who's available before transferring.
Handle multiple lines simultaneously. See which lines are ringing or on hold.
Park calls on dedicated buttons. Retrieve parked calls from any phone.
One-touch access to voicemail, do-not-disturb, call forwarding, and more.
Cisco SPA500 series sidecars work with the following desk phones:
The SPA303 does not support sidecars. If you need expansion buttons, consider upgrading to a SPA504G or higher.
Just $2/month for 15-32 extra programmable buttons. Perfect for receptionists.