Plug-in Modules Diagram Specifications PDFs Product Photography

REDCOM’s SLICE® 2100™ with TRANSip® is an integrated softswitch and media gateway platform that delivers interoperable communications to service providers, ILECs/CLECs and private networks. Built on an industry-standard SIP-based architecture, SLICE 2100 is a drop-in solution for carrier IP migration, End Office replacement, and distributed cloud voice services.

SLICE 2100 Key Benefits

  • VoIP call management, media gateway & TDM all in one platform
  • IMS interoperability via industry-standard SIP-based architecture
  • Up to 2,000 IP subscribers & SIP trunking
  • Interoperable with multiple access solutions including SIP, MGCP/NCS, GR-303 & V5.2
  • VoIP security: TLS/SRTP/SSL

A low risk transition to IP networks

icon-transition.jpgSLICE 2100 provides a high assurance migration solution that enables carriers to schedule a phased approach to VoIP implementation, risks, and financial exposure. Traffic, subscribers, and services are cut-over when it makes sense for your business, eliminating a high risk wholesale replacement. SLICE 2100 facilitates a cost effective way to add packet voice (IP) to an existing TDM switching network, while allowing service providers to retain legacy equipment investments.

Improve network efficiency

icon-efficiency.jpgDesigned for geographic distribution throughout the Cloud, SLICE 2100 enables carriers to keep the intelligent resources closer to the end user, and to share service resources for cost control and network resilience. Compatible with both legacy networks and the IMS network architecture, SLICE 2100 drops into existing networks while providing a leap into the future, allowing carriers to select the most efficient and cost effective transport  routes. In fact, SLICE 2100 makes the old centralized exchange model obsolete, replacing it with a truly distributed Cloud voice services architecture.

Remote/Access solutions

icon-remote.jpgSharpen your competitive edge with remote subscriber access via SIP, MGCP/NCS, GR-303, V5.2, or direct wired lines. Supporting both legacy TDM remotes and SIP-enabled Access Nodes with DSL, the SLICE 2100 enables carriers to modernize the access network on a responsible schedule. REDCOM’s Intelligent Remote model preserves local communications during catastrophic network failures. Key services (e.g., fire, police, government) front-ended with the SLICE 2100 can continue to operate even if the network core or significant transmission assets are compromised.

The lowest total cost of ownership

icon-cash.jpgDon’t burn your OpEx budget with the recurring costs of multi-year maintenance contracts. SLICE 2100 users enjoy NO scheduled maintenance, NO annual service contracts, and NO forced upgrades. Carriers realize a substantial reduction in OpEx when replacing legacy exchanges. Considering that recurring maintenance and service contracts typically double the price of most softswitches within four or five years, it’s comforting to know that lifetime costs for the SLICE 2100 won’t be much more than the initial purchase. Click here to learn more about total cost of ownership…

Nothing's greener than a SLICE 2100

icon-green.jpgSLICE 2100’s slim and light chassis was built for efficiency. It uses only 110 Watts on average, less than a couple incandescent light bulbs. Less wasted energy means more green in your wallet. In some cases, the power savings alone can show a full recovery on the investment in as little as four years! SLICE 2100 is built using REDCOM’s green manufacturing processes, meaning it is free of lead, mercury and other hazardous substances.

Application development API

icon-api.jpg“Killer Apps” may be a vestigial term, but the business is still alive. Create custom softswitch and media gateway applications with REDCOM’s Application Programming Interface (API). The SLICE 2100 is the perfect platform for carrier-class prototyping and developing applications to drive new revenue sources.

Secure & encrypted communications

icon-secure.jpgTRANSip, REDCOM’s VoIP technology suite, offers an additional layer of security for VoIP traffic with the ability to encrypt calls. Secure Real-Time Transport Protocol (SRTP) and Transport Layer Security (TLS) are available to encrypt the SIP call signaling and client authentication to ensure confidential communications.

SIP Trunking Made Easy

icon-siptrunk.jpgSIP trunking is a cost-effective way for service providers to leverage their IP network to reduce costs. SIP trunks deliver a significant return on investment and TRANSip-equipped SLICE 2100 softswitches have extensive SIP trunking capabilities to ensure that your switching resources fit your business model for current and future growth.

Interchangeable plug-in modules

The basic SLICE 2100 has two T1/E1 digital spans, two RS-232 ports, two 10/100 BaseT Ethernet ports, two PCMCIA slots for updates and database backup and one hot-swappable cooling module. It also has two rear-accessible positions for your choice of interface modules. These modules allow service providers to configure each SLICE 2100 to meet their specific needs.

12-Port Line Module


12 Loop Lines

  • DTMF receivers & caller-ID senders & echo cancellers
  • 24 or 48 volt loop battery (auto-select)
  • Meets both ANSI & ETSI standards
  • 1200/1900 Ω Loop

2 ISDN BRI-S (2B+D) Lines

  • Meets both ANSI & ETSI standards
  • 5ESS Protocol
  • National ISDN-1
  • Euro ISDN

1 Test Access Jack

24-Port Line Module


24 Loop Lines

  • DTMF receivers & caller-ID senders & echo cancellers
  • 24 or 48 volt loop battery (auto-select)
  • Meets both ANSI & ETSI standards
  • 1200/1900 Ω Loop

1 Test Access Jack

Analog Trunk (Magneto) Module


10 Loop Lines

  • DTMF receivers & caller-ID senders & echo cancellers
  • 24 or 48 volt loop battery (auto-select)
  • Meets both ANSI & ETSI standards
  • 1200/1900 Ω Loop

2 ISDN BRI-S (2B+D) Lines

  • Meets both ANSI & ETSI standards
  • 5ESS Protocol
  • National ISDN-1
  • Euro ISDN

2 E&M/SF Trunks

  • Software-selected per circuit to operate in E&M or SF mode

2 GSRD/LSRD Trunks

  • Software-selected per module to operate in GSRD or LSRD mode

 Multi-E1/T1 Module


4 E1/T1 Spans, each providing:

  • 100 Ω T1 interface or 120 Ω E1 interface, both using a shared RJ-45 connector
  • Software-selectable per span as E1/T1
  • Independent alarm and loopback indicators for each span
  • Software controlled clock synchronization
  • Can be provisioned as a fractional E1/T1
  • 4 general-purpose Digital Signal Processors (DSPs): DTMF, MF/R1, MFC R2, Echo Cancellation
  • Onboard support for Primary Rate: 4ESS & 5ESS Protocol, National ISDN-1, DMS100, Euro ISDN

 Media Gateway Module


  • Works in conjunction with the SLICE 2100’s built-in MSC
  • Provides the SLICE 2100 with an additional 128 timeslots per module
  • Allows more simultaneous TDM-IP calls
  • Provides extra bandwidth for gateway applications
  • Enables additional TRANSip capacity, such as tones and announcements
  • Provides general functions such as DTMF detection, tone generation, echo cancellation and conference calling
  • 1 10/100 Ethernet Port

 Radio Interface Module


  • Audio Levels: Mic or 600 ohm with additional gain/loss controls
  • Outgoing key methods: PTT, VOX, DTMF, Permanent
  • Incoming key methods: COR or VOX, External PTT
  • Administrable voice delay on transmit (allows for preambles and for scanners to lock to a channel)
  • Half-Duplex or Duplex operation
  • Secure Modes of Operation
  • External PTT, Voice and VOX output indicators
  • External Speaker outputs and remote dial-up monitoring (listen only)
  • Provisional tones: new user alert, End of Transmission, End of Reception
  • Echo Cancellers
  • Pressel-like DTMF keying

SLICE 2100 Next Generation Network


SLICE 2100 Specifications

Primary Configurations

  • Class 5 End Office
  • Class 4 Tandem/Transit Exchange
  • Media Gateway
  • International/IP Gateway
  • Call Manager

physical Specifications

  • Width: 19 in rack mount; 17.5 in / 44.5 cm
  • Height: 1U 1.75 in / 4.4 cm
  • Depth: 17.5 in / 45.5 cm
  • Weight: 16 lbs. / 7.3 kg
  • Power:
    • –48 VDC; 2.3 amps
    • 100/220 VAC, 50–60 Hz (external rectifier)
  • Environment
    • Operating temperatures: 32–122 °F / 0–50 °C ambient
    • Operating humidity: 5%–90% (non-condensing)

System Architecture

  • Distributed Control
  • Hot-Swappable Interfaces
  • Two bays for field-replaceable modules
  • Carrier-Class Reliability: 99.999% (“five nines”)
  • Two 10/100 Ethernet Ports
  • Two dedicated E1/T1 Ports
  • Serial Interface (Dual RS-232/9-Pin)
  • 48-Hour Protected RAM
  • Stackable up to 3 units (up to 6,000 IP subscribers)
  • Traffic: 36 ccs (1 Erlang) per Port (non-blocking)

Optional Modules

  • 12-Port Analog Line Module
  • 24-Port Analog Line Module
  • Analog Trunk Module
  • Loop, E&M, G/LSRD
  • Multi-E1/T1 Module
  • Media Gateway Module
  • Radio Interface Module

System Features

  • Administrative Package
  • Call Records SMDR/CDR/LAMA
    • Bellcore AMA Format (BAF)
  • Emergency Services (911)
  • Local Number Portability (LNP)
  • Multiple Home Exchanges
  • Percentage Trunking
  • REDCOM ClusterNet™: host/remote for integrated network operation
  • Three PIC Equal Access
  • Time-of-Day Database Changes (Least Cost Routing)
  • Toll Restriction
  • User Defined Announcements
  • Voice Mail System Interface
  • Web Portal for Subscribers, Centrex and Administration
  • Zone Paging

Application Development

  • Application Programming Interface (API)
  • Computer Telephony Integration (CTI)
  • External Database
  • Host Control Interface

Network Management

  • E-Mail: maintenance notes and traffic usage reports to any e-mail address
  • Management of multiple systems via REDCOM MAUI
  • SNMP support for alarms and system monitoring

Classsm & Billable Features

  • CLASS Features
  • Automatic Call Distributor (ACD)
  • Automated Call Processing (ACP)
  • Broadcast Ringing
  • Caller ID (Name and Number Delivery)
  • Centrex (IP and TDM)
  • Conferences
  • Conference Control
  • Preset, Meet-Me, Progressive
  • Optional Password Protection
  • Loudest Party Talker
  • Firebar
  • Customer-Originated Call Trace
  • Hotlines
  • Single Number Services (Find Me)

Access Solutions

  • Broadband Loop Carrier (BLC)
  • Direct wire 2-wire subscribers
  • GR-303
  • Radio
  • SIP
  • V5.2

Signaling & Protocols

  • A-Law/μ-255 Law PCM Conversion
  • DTMF & RFC 2833
  • E&M
  • GR-303
  • ISDN PRI (4ESS, 5ESS, NI1, DMS100, & Euro)
  • ISDN BRI (5ESS, NI1 & Euro)
  • MF/R1, FG-C&D
  • MFC R2
  • Radio Interface
  • SIP RFC 3261
  • SS7
    • 800 dips via TCAP
    • ANSI SS7 & ITU C7
    • LNP via TCAP
  • T1/E1
  • V5.2


  • Distributed Control
  • Lawful Intercept (CALEA): US J-STD-025A & US J-STD-025B
  • PIN Number Authorization
  • Priority Override
  • RADIUS Authentication
  • SRTP
  • TLS
  • User Level Security

Compatible SIP Phones

IP Technology Suite

  • Up to 2,000 registered IP subscribers per unit
  • SIP Call Controller/Call Manager
  • SIP Trunking
  • Domain Name System (DNS)
  • Dual Stack IP (IPv4, IPv6)
  • Audio Streaming RTP (RFCs 3550, 3551, 3389)
  • Comfort Noise Generation
  • Dynamic Host Configuration Protocol (DHCP) client
  • Echo Cancellation: G.165, G.168 (up to 128ms)
  • Fax over IP (T.38) and Modem over IP (V.150.1)
  • IMS Compatible
  • IP Bandwidth Management
  • Legacy Interface Support
  • Media Gateway
  • MGCP/NCS Line Support
  • (Packetcable 1.5)
  • Network Time Protocol (NTP)
  • QoS: IP Differentiated Services (DiffServ) marking
  • RFC 3261, 3326, 4028
  • Session Description Protocol (SDP) Manipulation
  • Silence Suppression
  • SIP support for CLASS lineside features
  • System CRON Timers
  • Telephony Tones: RFC 4733
  • VLAN Tagging
  • VoIP (SIP standards-based)


  • G.711A&μ (64kbps PCM)
  • G.722.1 & G.722.2 (HD Voice)
  • G.723.1H&L
  • G.726 (16, 24, 32, 40kbps ADPCM)
  • G.729A&B (8kbps CS-ACELP)
  • iLBC
  • RFC4040 (64 kbps)
  • Fax over IP: T.38, Media Gateway Conversion (MGC) & Auto
  • Modem over IP: V.150.1


  • CALEA: TIA J-STD-025A and J-STD-025B
  • Electromagnetic compatibility: FCC Part 15 Class A
  • Industry Canada CS-03
  • TIA-968-A

Wireless Capabilities

  • Radio Interface (VOX, COR, PTT)
  • Wireless IP Subscribers

Ancillary Products

  • Maintenance and Administration Graphical User Interface (MAUI)
  • Link Command System (LCS): Operator/Directory Assistance

SLICE 2100 PDF brochures & data sheets

SLICE 2100 Product Photography

slice-2100-front-thumb.jpg slice-2100-back-thumb.jpg slice-2100-left-thumb.jpg slice-2100-right-thumb.jpg

^ Back to Top