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4 Overview
NN10033-111 Standard MCP 1.1 FP1 (02.02) April 2003 Copyright © 2003, Nortel Networks
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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