Comtech EF Data SDM-9600 - Manual (Page 87)

Networking Features
Memotec Inc. 7-3
7.2 Voice Channels
NOTE:
Available with PowerCell transport (global Voice transport method parameter
set to
PowerCell
).
• Voice compression algorithms: ACELP-CN (8K/6K), G.729/G.729A (8K),
G.711 (PCM 64K), G.723 (low 5.3K/high 6.4K), G.726 (ADPCM 16K/24K/
30K/40K)
• Dialing: Multi-Frequency (MF), Dual Tone Multi-Frequency (DTMF) or Pulse
• Line activation: dedicated or switched
• Fallback: buffering scheme for packetization of DSP packets:
• Signaling: ISDN-PRI, QSIG
• Echo cancellation: CCITT G.165
• Fax Relay: Group III FAX 4.8, 7.2, 9.6, 12.0, 14.4 Kbps, over PowerCell or T.38
for SIP. Super G3 configurable to passthrough or fallback to G3. Group IV fax
and other non-voice bearer ISDN channel at 64K over VoIP
• Fax signal types: V.21 channel 2, V27ter 2400 bps, V27ter 4800 bps, V29 7200
bps, V29 9600 bps, V33 12000bps, V33 14400bps, V17 7200bps, V17 9600bps,
V17 12000bps, V17 14400bps
• Modem Relay: V.32bis demodulation up to 14.4 Kbps, modem passthrough
(G.711) for other modem types
• Encoding: Mu-law or A-law
Compression Packetization Fallback (Buffering)
ACELP-CN 8K and 6K (configurable) up to 5
G.723 6.4K and 5.3K (configurable) up to 3
G.726 16K 16K none
G.726 24K 24K none
G.726 32K 32K none
G.726 40K 40K none
G.729, G.729A 8K up to 8
PCM64K 64K up to 2
Table 7-1: Buffering scheme for packetization of DSP packets