NEC SL2100 Getting Started Manual page 26

SL2100 GETTING STARTED GUIDE
IP7WW-24TXH-B1 TEL (BK)
IP7[ ]-8IPLD-C1 TEL (BK)
IP7WW-60D DSS-B1 CONSOLE
(BK)
DP-D-1[ ]/HS.D503DOR-A/DX4NA
Doorphone Box
System Feature License
22
The 24TXH-B1 TEL is a 2-wire digital
multiline telephone.
The 8IPLD-C1 TEL is an IP multiline
telephone.
The DSS console gives a 2-wire Digital
multiline terminal user a Busy Lamp
Field (BLF) and one-button access to
extensions, trunks and system features.
Mainly designed for operator use, the
60-button DSS console provides an
additional 60 programmable keys.
Doorphone unit with call button,
microphone and loudspeaker.
Certain features can be enabled by
adding a license key.