O'Reilly logo

Cisco® Field Manual: Catalyst® Switch Configuration by Steve McQuerry, Dave Hucaby

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

14-3. Voice Modules

  • Catalyst 4000 access gateway— Performs as a WAN router, H.323 voice over IP (VoIP) gateway, and an SCCP digital signal processor (DSP) farm for Cisco CallManager. The module also supports these interfaces:

    - One Gigabit Ethernet 802.1Q trunk into the switch backplane, supporting up to six VLANs

    - Two voice/WAN interface cards (VWIC)— One or two-port T1 or E1 trunks
    - One voice interface card (VIC)— Two-port Foreign Exchange Station (FXS), two-port Foreign Exchange Office (FXO), or two-port ISDN BRI/ST
    - One WAN interface card (WIC) slot— One-port 56/64 kbps DSU/CSU, two-port asynchronous/synchronous serial
  • Catalyst 4000 8-port RJ-21 FXS module— VoIP gateway with 8 FXS interfaces for analog phone and fax devices.

  • Catalyst 4224 ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required