Nortel Networks NN43001-314 - Manual (Page 177)

Network Wide Redundancy Phase II and Network Music 177
or the CS 1000/2100 itself is down. When the link to the remote 2100/CS
1000 or to the remote CS 1000/2100 itself is restored, the IP telephones
are automatically redirected back to the remote CS 1000/2100 to receive
telephony services. Support for this feature is available in the MG 1000B
to provide survivability to IP telephones normally registered with a CS
2100/CS 1000.
The Network Music feature connects a Central Audio Server attached to a
CS 1000/2100 as the music source on demand to provide music to parties
(be it through a CO trunk, TIE trunk, FX trunk, WATS trunk, virtual trunk,
or extension) on hold in a CS 1000. The Central Audio Server is accessed
through a call to an external DN over an H.323/SIP virtual trunk or a TDM
trunk. The virtual trunk or TDM trunk connects to a network music trunk
through an analog TIE trunk, the Network Music TIE trunk. The virtual trunk
implemented with an XUT pack (NT8D14) and a network music agent. Two
trunk units in the XUT are used, one is configured as a Network Music trunk,
the other is configured as an incoming-only Network Music TIE trunk. The
two trunk units connect back to back, (for example,TIP lead to TIP lead and
Ring lead to Ring lead). The TIE trunk is auto terminated to the network
music agent, which is a PCA with a target PCA DN to ring the external
DN to reach the Central Audio Server. When a party is put on hold, the
party connects to the Network Music trunk, the capture of which initiates an
incoming call to the Network Music TIE trunk. The incoming TIE trunk call is
redirected to the Central Audio Server through the network music agent.
If an MG 100B is to provide survivability, you require the SBO package (390).
The Network Music Service feature requires the packages shown in Table
27: Network Music Service Feature Packaging Requirements.
Figure 65
Network Music Service Feature Packaging Requirements
For additional information see theSystem Redundancy (NN43001-507)NTP.
Nortel Communication Server 1000
Branch Office Installation and Commissioning
NN43001-314 01.02 Standard
Release 5.0 20 June 2007
Copyright © 2007, Nortel Networks
.