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can be swapped with other WAN interface cards, the Cisco VICs can be deployed interchangeably with other VICs in the voice/fax
network modules. This built-in flexibility and investment protection are key reasons for the world-wide popularity of Cisco modular
branch office router products.
VICs currently available include two-port foreign exchange station (FXS), direct inward dial (DID), foreign exchange office (FXO),
Centralized Automated Message Accounting (CAMA) and E&M analog interface cards. Also available are a two-port ISDN Basic
Rate Interface (BRI) digital interface card providing no phantom power and a two-port ISDN Basic Rate Interface (BRI) digital
interface card providing -48V phantom power. These cards cover the entire range of analog connectivity options along with user side
Q.931 and QSIG digital BRI connections (see chart). A Cisco 2600 series or 3620 can house one voice/fax module that contains up to
two VICs, a Cisco 3640 can house up to three modules with up to a total of six VICs, and the 3660 holds up to six network modules
providing a maximum of 24 analog voice ports. In addition, a Cisco 3725 can house two voice/fax modules with a total of four VICs
and a Cisco 3745 can house up to four modules with a total of eight VICs.
These low density/fax network modules also provide the gateway to Cisco AVVID architectures for calls to and from the PSTN and
legacy telephony equipment (including PBXs, analog telephones, fax machines and key systems). Users can deploy networks which
leverage investments in existing legacy telephony equipment while also deploying and integrating IP telephony immediately or in the
future. These network modules enable users to operate at any point on the voice, video & data integrated infrastructure spectrum while
incrementally adding connections to both legacy telephony and IP telephony on these networks.
Module/VIC Description
NM-1V One voice/fax interface card slot network module
NM-2V Two voice/fax interface card slot network module
VIC-2FXS Two-port FXS voice/fax interface card
VIC-2FXO Two-port FXO voice/fax interface card [also see VIC-2FXO-M1]
VIC-2E/M Two-port E&M voice/fax interface card
VIC-2FXO-EU Two-port FXO voice/fax interface card (for Europe) [also see VIC-2FXO-M2]
VIC-2FXO-M1 Two-port FXO voice/fax interface card with battery reversal detection and caller ID support (for US, Canada and others) [enhanced
version of the VIC-2FXO]
VIC-2FXO-M2 Two-port FXO voice/fax interface card with battery reversal detection and caller ID support (for Europe) [enhanced version of the
VIC-2FXO-EU]
VIC-2FXO-M3 Two-port FXO voice/fax interface card (for Australia)
VIC-2BRI-S/T-TE Two-port BRI voice/fax interface card (terminal side)
VIC-2BRI-NT/TE Two-port BRI voice/fax interface card (network and terminal side)
VIC-2DID Two-port DID (direct inward dial) voice/fax interface card
VIC-2CAMA Two-port CAMA trunk interface card