Cisco IOS H.323 GK - License FL-GK-NEW-2600= 사용자 설명서

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The Cisco Multiservice IP-to-IP Gateway can be used to provide quality of service (QoS) features for video endpoints

in place of the MCM/Proxy using Cisco IOS Software Release 12.3(4)T or higher. The IP-to-IP Gateway provides

new features not available with the MCM/Proxy such as:

• Support for H.323v3/v4 versus H.323v2

• Resource Reservation Protocol (RSVP) synchronized with call signaling to allow control over call handling when

reservations fail

• Differentiated Services Code Points (DSCP) markings

• Far end camera control

• Codecs can be transparent to the IP-to-IP Gateway. This allows Video endpoints to negotiate codec capabilities

independently and makes it possible to use codecs between video endpoints that are not natively supported on

the Cisco IOS Gateway.

• Interoperability with Cisco CallManager

When configuring a system, the H.323 Gatekeeper Feature License will be presented when any of the Cisco IOS

Software images containing the H.323 Gatekeeper features are selected. The list of appropriate Cisco IOS Software

images appears in Table 2.

The Cisco Multiservice IP-to-IP Gateway enhances the existing capabilities of H.323 based voice- and video-over-IP

as an additional control and demarcation point in the network. You could use this functionality to provide a secure

boundary between independent administrative domains or simply as a proxy for enriched services within a single

administrative domain. The IP-to-IP Gateway performs many of the same functions as a traditional a PSTN-to-IP

gateway, but it can also act on two IP call legs, rather than only on calls consisting of a TDM and an IP call leg.

Table 2

H.323 Gatekeeper - Cisco IOS Software Images by Platform

There are two different software images available with H.323 Gatekeeper support for
these platforms.

1. Cisco Series IOS IP/H323 (ix): Supports the following configuration only:

– Gatekeeper + MCM Proxy

2. Cisco Series ENTERPRISE PLUS/H323 MCM (jsx): Supports either of the

following configurations:

– Gatekeeper + IP-to-IP Gateway

– Gatekeeper + MCM/Proxy

In addition to Gatekeeper + IP-to-IP Gateway features, Cisco IOS ENTERPRISE PLUS/
H323 MCM supports voice gateway interfaces to connect to circuit switched / TDM
devices (e.g. FXS, FXO, T1, E1, etc.). All features can run concurrently on the same
hardware platform.

1. Cisco Series IOS ENTERPRISE (js)

2. Cisco Series IOS ENTERPRISE MCM (jx2)

Note: IOS ENTERPRISE MCM was discontinued starting with 12.3T and 12.3 Mainline