Product Description
The NEC SL2100 IP PBX is a flexible business communication system designed for small and medium-sized businesses that need reliable voice communication, IP telephony, mobility, and unified communications. It combines traditional telephony with modern VoIP, SIP trunking, IP extensions, mobile extensions, and UC applications, making it suitable for businesses transitioning from conventional PBX systems to IP-based communication.
The SL2100 supports up to 112 IP extensions and up to 64 IP trunks in a single chassis configuration, while the overall system can accommodate a wide range of digital, analog, and IP endpoints depending on its configuration and expansion cards. It also provides built-in VoIP resources that can be expanded through optional hardware.
For businesses with remote employees or multiple locations, the NEC SL2100 provides mobile extension, smartphone integration, remote/home-office support, and IP networking capabilities. Its unified communications options include a web-based UC client, web conferencing, collaboration, voicemail, audio conferencing, and small contact-center functionality such as Automatic Call Distribution (ACD).
The system supports SIP trunks, SIP phones, digital phones, analog extensions, PSTN, ISDN, paging, door phones, and other business communication peripherals, providing organizations with considerable deployment flexibility. Its modular architecture also allows businesses to expand capacity as communication requirements grow.
Key Features
- Supports up to 112 IP extensions
- Supports up to 64 IP trunks
- Built-in 8-channel VoIP capacity, expandable up to 128 channels
- SIP trunk and SIP phone support
- Digital and analog extension support
- Mobile extension and smartphone integration
- Web-based Unified Communications client
- Web-based video conferencing and collaboration
- Built-in voicemail and Voice Response System
- Audio conferencing support
- Automatic Call Distribution (ACD) for small contact centers
- Remote and home-office support
- Multi-site operation over IP networks
- Supports PSTN, ISDN, SIP trunks, and IP telephony
- Supports paging, door phones, alarms, and music-on-hold
- Up to 4 expansion slots in the chassis
- Suitable for small and medium-sized businesses
- Flexible migration from traditional telephony to VoIP
- Enterprise-grade communication features in a compact PBX platform


