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Cisco Interface Cards
Four-port FXS Voice/Fax
Interface Card
FXS port is used to
connect directly to phones,
fax machines, and key
systems Generates
battery polarity reversal
and caller ID
Voice and Fax Integration
3800 Series–123(11)T
2800 Series–123(8)T4
When used in a Cisco 2800
or 3800 router, requires a
DSP module
123 Mainline and forward
supported in IP Voice
feature set
Two-port BRI Voice/Fax
Interface Card
This two-port ISDN
terminal-side or network-
side Basic Rate Interface
(BRI) voice interface
card connects directly to
PSTNs and PBX/PABXs
and supports both on-
premise and off-premise
connections Supports a
total of four voice channels
in a single interface card
via two RJ-45 physical
ports, and enables
toll-bypass and voice-over-
packet features
Voice and Fax Integration
3800 Series–123(11)T
2800 Series–123(8)T4
When used in a Cisco 2800
or 3800 router, requires a
DSP module
123 Mainline and forward
supported in IP Voice
feature set
Two-port FXO Voice/Fax
Interface Card (universal
card for all countries)
Also Supports CAMA
(Centralized Automated
Message Accounting) on
Any Port
FXO ports are used to
connect to PBX or key
systems, or to provide
off-premise connections
to PSTN or PTT Supports
battery reversal detection
and caller ID These Cisco
VICs can be software-
congured to work in all
countries Also used to
connect to analog CAMA
trunk to provide dedicated
E-911 service (North
America only)
Voice and Fax Integration
3800 Series–123(11)T
2800 Series–123(8)T4
When used in a Cisco 2800
or 3800 router, requires a
DSP module
123 Mainline and forward
supported in IP Voice
feature set
Four-port FXO Voice/Fax
Interface Card (universal
card for all countries)
Also Supports CAMA
(Centralized Automated
Message Accounting) on
Any Port
FXO ports are used to
connect to PBX or key
systems, or to provide
off-premise connections
to PSTN or PTT Supports
battery reversal detection
and caller ID These Cisco
VICs can be software-
congured to work in all
countries Also used to
connect to analog CAMA
trunk to provide dedicated
E-911 service (North
America only)
Voice and Fax Integration
3800 Series–123(11)T
2800 Series–123(8)T4
When used in a Cisco 2800
or 3800 router, requires a
DSP module
123 Mainline and forward
supported in IP Voice
feature set
Two-port E&M Voice/
Fax Interface Card
Also Supports CAMA
(Centralized Automated
Message Accounting)
on Any Port
The two-port E&M voice
interface card for Cisco
voice/fax network modules
is used to connect to
PBX or key system trunk
lines This voice interface
card works with existing
phone and fax equipment
to provide voice and fax
services over IP, and is
compatible with H323
standard for audio- and
videoconferencing
Voice and Fax Integration
3800 Series–123(11)T
2800 Series–123(8)T4
When used in a Cisco 2800
or 3800 router, requires a
DSP module
123 Mainline and forward
supported in IP Voice
feature set
Cisco Interface Cards