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Sigma SOHO Wired/Cordless telephone systems


The Sigma Small Office Home Office corded and cordless PABX system
(SA's top selling powerful small cordless PABX system.)

 Download Brochure Here

Please contact us on 021 5571868  for assistance.

Skype-: voicesource1


 The Sigma is the premier product for one or two line businesses that requires broadband communications as well as feature rich voice services and data networking.

It is a unique product as it offers a total Small Office / Home Office (SOHO)e solution in a single platform.

By combining a fully featured PBX with a VoIP and data gateway, VoIP and PSTN calls are handled in the same manner. Therefore it is possible to switch a call, which has been made or received on a VoIP line, allowing the VoIP channels to be used in the same way as a PSTN telephone line.


·         Sigma is a practical, convenient and affordable office in a box solution for the smallest business and home office, up to 8 users

·         It is the only package to bring voice, broadband and data communications in one box with dedicated helpdesk support

·         It boasts extensive call handling features:

·         Wired and DECT extensions ( Switchboard phone with wired and/or cordless telephones.System can be used without Switchboard phone(Optional)

·         ADSL modem

·         4 port router

·         Firewall

·         WLAN

·         2 x VoIP Channels to provide 1 or 2 extra voice lines

Sigma Features

It is unique in the market place as it integrates a fully featured PABX supporting both wired Feature Set extensions and integrated Digital cordless extensions together with a complete data solution including wireless LAN.

As well as supporting 2 PSTN lines. The Sigma also integrates 2 channels of VoIP seamlessly into the PABX. This offers end users the security of PSTN for emergency and local calls and the cost advantages of VoIP for long distance calls without any complicated external equipment.

The Sigma has a fully featured PABX with 4 wired extensions and 4 cordless extensions, integrated voicemail, system directory (available from both Feature and DECT sets) and music on hold. A doorphone can also be supported on on of the Wired extensions

The Sigma is also a fully featured data solution and is equipped with ADSL modem, router, firewall, 4 Fast Ethernet ports, WiFi (802.11b/g). Internet access through a Cable Modem is also supported using a WAN port.

The on-board ADSL 2+ modem & router with WLAN allows multiple users to share broadband Internet access and is ideally suited to a start-up office environment.

All setup and configuration by the user is easily performed through an intuative integrated web interface. A remote access option is also available to enable a network operator/supplier to remotely configure and manage the Sigma

For the network operator/supplier, Sigma is the platform, which can enable the operator to create a ‘sticky’ bundle of ADSL, PSTN and VoIP services to satisfy the complete communication needs of the end user.

A range of accessories including a Doorphone and external music on hold adaptor are available.
Sigma unbeatable Price PABX Bundles-:
Sigma base unit consists of 2 PSTN lines + 2 VOIP lines + Wireless router + voicemail + DECT base.
Bundles-: Please order by bundle number below.
1)Sigma Base unit + 2 DECT cordless handsets
2)Sigma Base unit + 4 DECT cordless handsets
3)Sigma Base unit + CS Switchboard phone + 2 DECT cordless handsets.
4)Sigma Base unit + CS Switchboard Phone + 4 DECT cordless handsets.
5)Sigma Base unit + CS Switchboard Phone + 2 DECT + 2 wired extensions
6)Sigma Base unit + CS Switchboard + 2 DECT + 3 wired extensions
7)Sigma Base unit + CS Switchboard + 4 DECT + 2 wired extensions
8)Sigma Base unit + CS Switchboard + 4 DECT + 3 wired extensions
9)Sigma Base unit + 2 DECT + 2 wired extensions
10)Sigma Base unit + 2 DECT + 3 wired extensions
11)Sigma Base unit + 2 DECT + 4 wired extensions
12)Sigma Base unit + 4 DECT + 2 wired extensions
13)Sigma Base unit + 4 DECT + 3 wired extensions
14)Sigma Base unit + 4 DECT + 4 wired extensions
Please note that the Sigma SOHO PABX supports 8 extensions in total ( 4 x DECT handsets and 4 x wired handsets.)The CS Switchboard phone can be used on all 4 wired extension ports
Please contact us on 021 5571868  for assistance.

Skype-: voicesource1


Sigma Technical Specification

Technical Specification

Download Brochure Here
Data Gateway Features
  • WAN interfaces
  • WLAN
  • DHCP server
  • DNS relay
  • Routing
  • Stateful Inspection Firewall
  • Virtual server (including PAT and DMZ host)
  • IGMP proxy
  • VoIP (SIP 2.0)
  • ADSL Modem
    The modem complies with the following
    ANSI T1.413 Issue 2
    ITU-T G.992.1 Annex A / B (G.DMT)
    ITU-T G.992.2 (G.lite)
    ITU-T G.992.3 (G.dmt.bis)
    ITU-T G.992.5 (ADSL 2+)

    Protocol Support
    RFC 1483
    PABX Capacity
    2 PSTN lines
    4 x Wired extensions
    (Up to 4 fully featured Feature Phones )
    Integrated DECT base station with support for 4 (Europe) or 6 (US) DECT handsets (GAP compliant)
    Euro DECT and UPCS (US DECT) options
    Feature Phones
  • Large high contrast display
  • Integrated speakerphone/conference
  • Dual coloured programmable keys/LEDs

  • Feature Set includes
  • Call Pickup
  • Call Waiting
  • Conference
  • Call Forward
  • Do Not Disturb
  • Night service
  • Call Hold
  • Music on Hold
  • Redial
  • Reminder Call
  • Speed Dial
  • Voicemail

  • Shared Directory (DECT and Feature Phone)
    WAN Interface
    The router has the following WAN interfaces:
  • 10/100 BaseT Ethernet WAN port
  • ADSL 2+ modem

  • LAN Ports
    4 x 10/100 BaseT Ethernet ports
    Quality of Service
  • Voice Service is prioritised over the data traffic (Network Dependant)
  • Wireless LAN Access Point
    An 802.11b/g WiFi Access Point is provided.
    Wireless - WEP and WPA are both supported for wireless security
    Firewall - Stateful Inspection Firewall, NetworkAddress Translation, Intrusion detection
    VoIP Functionality
    2 x SIP (RFC 3261) voice channels
    The following codecs are available to each channel:
  • G.711 (64 kb/s) μ-Law
  • G.729 A/B (8 kb/s)
  • G.726 (32 kb/s)

  • The following features are used by the gateway:
  • VAD (Voice Activity Detection)
  • Silence suppression
  • Comfort noise
  • Echo cancellation (G.168)
  • Management Application
    Management system configuration via an intuitive web-based graphical user interface
    Full Remote Management Application
    Integrated VoiceMail application
    System Voicemail
    Individual extension voicemail.
    Regulatory Compliance
    Insert specs here
    Other features
    Door Strike
    Power Fail extension
    Integrated Doorphone support
    Power Supply
    AC-to-DC power adapter (provided)
    110/220v AC
    24 V DC 1.0A
    200mm (W) x 190mm (H) x 80mm



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