Emutel Symphony

Multi Port Simulator for Basic Rate, Primary Rate, ISDN and Analog

Product overview

By simulating the operation of a Central Office Switch, Emutel™ |Symphony can provide a combination of Primary Rate ISDN, Basic Rate ISDN and/or Analog telephone connections which may be used just like regular ISDN lines or employed to carry out equipment testing. Emutel™ | Symphony is a modular 3 slot system comprising a system controller and up to 2 selectable plug-in expansion cards so you can build the network simulator to suit your application (see configuration options for more details).

Almost every feature of Emutel™ | Symphony may be customised via the Windows application supplied or ANSI terminal. For example, the entire directory numbering structure may be changed. Special numbers activate network conditions such as User Busy or Call Rejected and line power can be switched on or off. Emutel™ | Symphony is extremely easy to use with LEDs showing at a glance the activity on each port.


Emutel Symphony PRI BRI Analog ISDN network simulator

Product features...

  • Ideal for product development, training and demonstration.
  • Modular with many configuration options available.
  • BRI (S), BRI (U), E1, T1 and Analog interfaces.
  • Emulates different ISDN variants by changing the PCMCIA protocol support card.
  • Simple configuration via Windows application or ANSI terminal.
  • Remote configuration and control.

Emutel™ | Symphony can be managed/configured locally or remotely with an optional internal modem for dial up management. Connect to the LAN and configuration and analysis may be performed from a remote PC in the network.

The optional protocol analysis feature provides a decode of Layer 1, 2 and 3 for both ISDN and X.25.

Emutel | Symphony is a truly international product. By plugging in personality cards the system can accurately emulate ISDN variants in a whole range of different countries. Cards are available for Euro-ISDN (Europe), AT&T 5ESS, National-ISDN & Nortel DMS100 (North America), BTNR191 (UK), VN3 (France), 1TR6 (Germany) and NTT (Japan). Network dependent supplementary services are also supported (see list for details).

At just 5 Kg Emutel | Symphony is easily portable and, since terminals can be powered directly from the interfaces, it really is the ideal system for use at demonstrations, presentations and exhibitions.

In addition, Emutel | Symphony's universal power supply, which automatically switches between 240V and 110V, ensures that the system is transferable between the US and Europe without any adaptations.

Only need two or four basic rate ports? Find out about the B-LinkU or our four port B-Link4.


Ports/ Interface Type Various user defined configuration options:
Basic Rate (S) ISDN Ports.
Basic Rate (U) ISDN Ports
Primary Rate (E1) ISDN
Primary Rate (T1) ISDN
BRI ISDN Interface Power 40V, 1W Normal and Restricted on S; 88V, 3W Normal and Sealing on U
Analog Telephone Interface -36V line feed, REN4, RJ11
LAN Ethernet 10BaseT, RJ45.
Internal Modem (optional) V.34, RJ11
B Channels 2 per BRI, 6-30 per PRI E1 and 6-23 per PRI T1
Optional PCMCIA Protocol Support Cards
(ITU supplied as standard)
Euro-ISDN (Europe)
NAT-1/DMS100/5ESS (North America), BTNR191 (UK), VN2/3 (France),
1TR6 (Germany)
NTT (Japan)
ISDN Supplementary Service Support Support varies depending on which optional PCMCIA support card is used. See list for further details.
Semi-Permanent Connection Semi-Permanent/nailed-up connection on ISDN BRI/PRI B channels.
D Channel Packet X.25 on BRI1/BRI2, 100 logical calls in DCE mode.
Directory Numbering BRI Two numbers per interface normal, 10 numbers per interface if using DDI/MSN and one number per interface for auxiliary working.
Directory Numbering PRI Thirty numbers per interface normal, 100 numbers per interface if using DDI/MSN and one number per interface for auxiliary working.
Protocol Analyser (optional) Layer 1, 2 and 3 can be analysed for both ISDN and X.25: Configuration for all networks irrespective of networks simulated.
Display Indicators P (physical), D (datalink), and B (B channel) per interface.
Test Tones Dial, Busy, Error, Ringing and selected tones 300Hz - 3400Hz, +dBm to 26dBm.
User Interface Windows application or VT100 Terminal (V.24 interface DB9 connection).
Size/Weight Size - Desktop: 12cm(h) x 48cm(w) x 38cm(d)
Size - 19" Rack: 9cm(h) x 48cm(w) x 39cm(d)
Weight: 5Kg
Power 90-260 Vac, 100W
Warranty One year

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