Features

• Interoperable capability
• Flexible scalability
• Extensive service capability
• Perfect access capability with integrated devices
• Massive networking capability
• Manageability and operability
• High reliability

Applications

• Backbone data network for toll services
• Enterprise network for VoIP services
• Internet for IP value-added services
• Metropolitan network for local services
• Multimedia services
• Integrated IN services
• PSTN and IN interoperation services

Functions

• Processes basic and enhanced calls
• Protocol Adaptation
• Provides service platforms with an open and standard interface - supports future expansion
• Interconnects and interoperates with peers
• Supports accounting, authentication, maintenance, etc.
• Address resolution: Converts E.164 address to IP addresses
• Controls whether media gateway shall adopt voice compression and provides optional algorithms as necessary
• Provides strong dual-homing mechanism
• Centrally managed system resources such as resource allocation, release and control

Protocol Capability

• Call control protocols: ISUP, TUP over IP, SIP, SIP-T, SIP-I, H.323, BICC, V5.2, R2, PRA
• Transport control protocols: TCP, UDP, SCTP, TCAP/SCCP, M3UA, M2UA, M2PA, IUA, V5UA
• Media control protocols: H.248/MEGACO, SIP, MGCP, NCS
• Service application protocols: INAP(CS2), LDAP, RADIUS, MAP
• Maintenance management protocols: SNMP, FTP, Telnet

Performance Capability

• System Capacity:
  Subscribers: 16,000,000 (max.)
  Trunks: 1,600,000 (max.)
  Signaling gateway numbers: 1000 (max.)
  Max number of signaling point: 1024
  Max number of signaling link: 1500 64k or 100 2M
  Media gateway numbers: 2 million
  Black/While list: 5 million
  Accuracy of billing: ≥ 99.9999%
  Cascading frames: 8 (max.)
• Processing Capability:
  Single frame: BHCA: not less than 2M for subscribers (max.)
  Single system: BHCA: not less than 16M for subscribers (max.)
• Reliability:
  Recovery time: less than 5 minutes (max.)
  Annual failure time: 5.3 minutes (total)

Services

• Voice services: 100% with PSTN/ISDN basic and supplementary services
• Softswitch services: Wide area IP Centrex, Broadband IP phone bar services, etc.
• Integrated voice / data services: Click-to-dial, Web 800, Web conference, ONLY, prepaid, etc.
• Multimedia: Videophone, Video conference, SoftDA , etc.
• Cooperated with application server: Unified information, Prepaid, Voice-mail, etc.

Position

ZXSS10 SS1b is located at the control layer.