M3900 Key-based Expansion Module
Overview
Nortel M3900 Key-Based Expansion Module provides 22 keys for any combination of lines and features. The M3904 and M3905 each support up to two expansion modules, for a total of 44 additional keys.
Technical Specifications
The M3900 Series Key-based Expansion Module is compatible with these M3900 series phones:
 |
 |
| M3904 | M3905 |
Residential Services
Business Services
- Featured Packages
- Standard Services
- Ironton Calling Features
- Audio/Video Conferencing
- Special Circuits (ISDN)
Ironton DSL
Business Systems
- Main Page
- Business Comm. Manager
- Norstar ICS
- Norstar Business Terminals
- CallPilot Messaging
- Communication Server
- Meridian 1 Digital PBX
- Meridian 1 Digital Terminals
- Meridian 1 System Software
- Mobility Wireless Solutions
- Nortel IP Phones
- ESI Communication Server
- Sutus Business Central
Repair and Support
- Repair Services and Rates
- Diagnosing Trouble
- Testing Inside Wiring
- Wiring the Interface
- Repair Cautions
Company Information
Ironton Telephone Company
4242 Mauch Chunk Road
Coplay, PA 18037-9608
Business Office
Phone: 610-799-3131
Business System Sales
Phone: 610-799-0025
Fax: 610-799-0035
4242 Mauch Chunk Road
Coplay, PA 18037-9608
Business Office
Phone: 610-799-3131
Business System Sales
Phone: 610-799-0025
Fax: 610-799-0035
