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Overview 9

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If the platform sending the INFO receives a response code other than

the ones listed above, it treats the response as a valid audit response,

and does not bring the call down.

The CS 2000 sends a 200 OK for an empty INFO message and a 481

response code if the call leg does not exist.

Supported media

The following are the media supported by the interworking of MCP and

the CS 2000:

• G. 711 PCMU

• G. 711 PCMA

•G. 729

•G. 723

•G3 Fax

• Modem

Note 1: This list represents a full list of the media capabilities the

MCP can use while interworking with the CS 2000. The actual list of

supported media types depends on the capabilities of the gateways

that the CS 2000 is using.

Note 2: G3 Fax and Modem media calls are used only for CS 2000

gateway calls as there are no MCP endpoints that support either of

these two media types.

QoS

MCP implements its Quality of Service through the DiffServ

(Differentiated Service) feature. The parameters of MCP QoS include

the following:

• QoS DiffServ code for signaling: specifies signaling quality for SIP

clients.

• QoS DiffServ code for audio: specifies audio quality for SIP clients.

• QoS DiffServ code for video: specifies video quality for SIP clients.

• QoS 802.1p for service priority: specifies service priority for SIP

clients.

Interworking with third-party gateways

The MCP can use SIP signaling between the MCP network and a

third-party SIP-enabled gateway. The third-party gateway provides the

necessary signalling interworking between the MCP network and the

other network to which the gateway is connected. For example, a

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Nortel Networks Telephone NN10033-111 Bedienungsanleitung Seite 9