Cortelco 8780 Manuals

3 pdf manual(s) Cortelco 8780 for free download (Features, Instruction manual)

(3) Documents:

8780 Features (2 pages)

114042.pdf
Updated: 02.08.2026
Looking up connection and wiring, programming options and common questions and answers? The Cortelco 8780 Features is a good place to start. ™ 1703 Sawyer Road Corinth,MS 38834 662-287-5281 Fax: 662-287-3889 www.cortelco.com Caller ID * Single-line…

8780 Instruction manual (8 pages)

1030599.pdf
Updated: 03.08.2026
Consult the Cortelco 8780 Instruction manual for mounting recommendations, settings and adjustments, together with cleaning instructions. 3 TELEPHONE PART IDENTIFICATION 1. Liquid Crystal Display (Multi-Angle LCD) - Displays the phone number, date and time…

Contents

8780 Line Powered Caller ID

1
TELEPHONE PART IDENTIFICATION

3
Will flash when the unit is on hold.

4
DATA PORT (RJ11) – Not used at JMU

5
Answer a Call - Pick up the handset or press

6
Caller ID Review – While on-hook, press CLID

7

8780 Instruction manual (16 pages)

114041.pdf
Updated: 13.05.2026
Cortelco 8780 Instruction manual — 16-page document with component overview, installation guide, and also component replacement. 2 Table of Contents IMPORTANT SAFETY INSTRUCTIONS ................................... 3 TELEPHONE PART IDENTIFICATION…

Contents

8780 Line Powered Caller ID

1
Table of Contents

2
IMPORTANT SAFETY INSTRUCTIONS

3
TELEPHONE PART IDENTIFICATION

4
Will light up when the unit is in use.

5
Make a Call - Pick up the handset or press

9
Store Phone Book Memories – While on-hook, press

11
TELEPHONE SERVICE PROBLEMS

13

8780: Related Instructions