The Key Expansion Module for the DP5000 & IP5000-series telephones. Up to 2 KM5020's supported on: DP5018-S, DP5022-SDM, DP5022-SD, DP5122-SD, DP5032-SD, DP5132-SD, DP5130-SDL, IP5122-SD, IP5132-SD, IP5131-SDL. KM5020's are not supported on model DP5008.
Provides 20-programmable buttons which may be assigned as:
CO line
Directory Number
DSS
One Touch
Speed Dial or any other flexible feature
Works on any of the DP series telephones (except the DP5008)
Connects directly to the telephone
Does not require an additional port
Up to two Add-on-Modules can be attached to a telephone
