Nortel Networks Telephone NN10033-111 Uživatelský manuál stáhnout pdf (Strana 4)

4 Overview

Nortel Networks Confidential

Supported services

The SIP PRI Gateway supports the following call types:

• SIP to PRI

• PRI to SIP

• PRI to PRI

The SIP PRI Gateway supports the following call features:

• Basic call: The ability to make a call.

• Hold/Retrieve: The ability to hold and retrieve calls.

• Call transfers: The ability to forward the call to a third party after the

call is established. Call transfer is limited to SIP clients. Callers from

the PRI-enabled switches cannot perform this function.

• Call redirect: The ability to forward a call before it is answered.

• Codec negotiation: The ability to negotiate between different VoIP

codecs during call setup, mid-call, call transfer, and call retrieve.

The SIP PRI Gateway supports the following codecs:

— G.711 mu-law (PCMU)

— G.711 a-law (PCMA)

— G.723.1

— G.729a

• Call rejection: The ability to reject a call on nodal authentication

request.

• Calling party name and number: The MCP supports the

delivery/reception of calling party name and number information

to/from PRI-enabled switches. Incoming calling party information

privacy indication is honored by the MCP. For MCP call originations,

privacy indication is not used.

• Dual-Tone Multi Frequency (DTMF) outpulsing: The ability to

outpulse to PRI-enabled switches. However, DTMF detection is not

provided. Military DTMF digits A-D are currently not supported.

• ISDN trunk group selection: The selection is based on information

provided in a request Universal Resource Identifier (URI).

• Ringback: The SIP PRI Gateway provides ringback towards the

circuit-switched side of the network.

• PRI variant support: The SIP PRI Gateway supports different PRI

variants. For a list of the PRI variants that the SIP PRI Gateway

supports, please refer to the MCP SIP PRI Gateway Basics

document.

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Nortel Networks Telephone NN10033-111 Uživatelský manuál Strana 4