Siemens 600 Series - Manual (Page 18)

1–4 ROLMphone 300/600 User Guide
ROLMphone 300 Series Telephone
The ROLMphone 300 series offers two models.
• The RP312 has 12 feature keys and one line
extension.
• The RP312L also has a two-line display with up to
24 characters per line.
Figure 1–2. ROLMphone 312L Telephone