ZXMSG 5200 (V2.0) Technical Manual
20 Confidential and Proprietary Information of ZTE CORPORATION
telecom network is newly constructed. When the NGN becomes completely
mature, the old PSTN can be cut over into the new NGN at minimum cost.
In such a context, the emergence and development of the ZXMSG 5200
system meet the following requirements:
NGN AG requirements, guaranteeing a leading market position in the
AG field.
Requirements for upgrading MSAN equipment in the PSTN into AG at
low costs
Applicable Standards
The ZXMSG 5200 belongs to the integrated media access gateways,
following YD 1243.3-2002 Integrated Access Media Gateway Technical
Specifications. The Integrated Access Media Gateway provides abundant
service access for various subscribers, such as analog subscriber access,
ISDN access, V5 access, XDSL access and LAN access. It also can access
to IP network or ATM network.
Main Functions
The ZXMSG 5200 can get analog POTS-interface subscribers access to IP
networks directly and implement voice/fax conversion at the analog
subscriber side and voice/fax conversion at the IP network side. The
ZXMSG 5200 also can access common POTS-interface subscribers to
narrowband voice services. ZXMSG 5200’s SoftSwitch implements voice
compressing/decompressing (G.723.1, G.711 and G.729), facsimile (T.30
and T.38) and more VoIP or IP FAX services under the control of
H.248/MGCP.
In the NGN with SoftSwitch, the ZXMSG 5200 can be configured to take
the place of traditional access network in networking or to support hybrid
networking with the SoftSwitch in access networks.
System Working Principles
The ZXMSG 5200 takes “TDM + IP” as a kernel, internally comprising the
circuit-switching network and Ethernet-switching network. The working
principle is illustrated in Figure 1:
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