| Here are examples of the progression in functionality and speed provided by the networks available |
Phase 1 |
Phase 2 |
Phase 3 |
Phase 4 |
PSTN |
ISDN |
ADSL (typical bandwidth) |
ADSL with failsafe backup network |
LAN: (PSTN, ISDN) |
Wireless:
GPRS – Max 48 kbps
EDGE – Max 384kbps
3G -
HSDPA – Max
3600Kbps |
Phone Calls Supported Per Line |
1 (Max) |
2 (Max) |
4 + VOIP calls |
4 + VOIP calls |
EPOS Transaction Times |
20-45 Seconds |
7-8 Seconds |
3-4 Seconds |
3-4 Seconds |
Running Costs |
Cost of normal phone call |
ISDN line rental + cost of normal phone calls |
Cost of Broadband |
Cost of Broadband + backup network (PSTN, ISDN, GPRS, EDGE, 3G, HSDPA) |
Functionality |
Either 1 phone call or EPOS transaction at a time |
1 simultaneous call and EPOS transaction per line |
Multiple simultaneous VOIP Calls and EPOS Transactions, in store radio, Security Alarm/Surveillance systems |
Multiple simultaneous VOIP Calls and EPOS Transactions, in store radio, Security Alarm/Surveillance systems |
Product Suitability |
N/A |
TA2020B
IR2110B
IR4420 |
DR6000 Series
|
DR6000 with ISDN
DR6000 with PSTN
DR6000 with EDGE
DR6000 with HSDPA
(Note DR6000 can support a backup wired AND wireless network)
MW3520 with GPRS
|