Specifications

6 IBM Voice Over Frame Relay Perform Guide
Figure 3. IBM Voice over Frame Relay Solution Comparison
LAN connectivity EN, Fast EN, TR EN,FastEN,TR EN, TR EN, TR
Max Frame Relay connections Up to 20 ports Up to 12 ports Up to 12 Up to 8
Analog voice interfaces including
E&M 2- and 4-wire, FXO, FXS
Max Analog channels supported Up to 8 Up to 12 Up to 12 Up to 8
Digital PBX interface DSX-1
Max Digital channels supported Up to 30 Up to 30 Up to 30 Up to 30
Voice Compression Algorithms ADPCM G.726,
LD-CELP G.728,
ACELP G.729,
E-CELP (proprietary)
ADPCM G.726,
ACELP G.729
G.723.1,
CVSELP,
ACELP G.729
ADPCM G.726,
ACELP G.729,
PCM G.711
Group III Fax
Analog signalling including DTMF,
immediate and wink start
Digital signalling DTMF, CAS, Rob.Bit CAS, CCS,Q.SIG CAS,CCS,QSIG,RBit CAS, Robbed Bit
Traffic prioritization (voice over data) unknown unknown unknown
Echo cancellation
Per call voice switching
Tandem detection unknown unknown
Centralized dialing plan unknown unknown
Network Management SNMP SNMP SNMP SNMP
Also supports VPN, remote access
IBM Solution
9783, 2212,2210
Cisco Solution
3810,3600,2600
Motorola Solution
VGuard 6xxx,3xx
ACT Solultion
9400, 93x0
Competitive
Comparison