Lucent Technologies Network Card Lucent Network Gateway User Manual

Lucent Network Gateway  
The Lucent Network Gateway is the media gateway component in Lucent’s IP  
MultiMedia Subsystem (IMS) Portfolio. As the cornerstone of the converged  
network, it seamlessly and economically merges the traditional PSTN with  
proliferating IP networks. Because it is bearer protocol agnostic,  
the Network Gateway supports a wide variety of wireline and wireless  
applications. Converged applications may be combined in the same gateway  
enabling TDM, ATM and IP access along with traditional TDM trunking to  
the PSTN/GSTN. The Network Gateway also provides wireless access to  
the Radio Access Network for both a GSM (A interface) and UMTS  
(Iu-CS interface) wireless system and may also be used in a 3GPP R5  
environment as the media gateway for an IP Multimedia Subsystem.  
Technical Specifications  
Features  
Description  
• Bearer protocol agnostic  
• Wireline/wireless packet codec support  
1. Protocol Support  
• ITU-T H.248, IUA, LAPD, CAS (FG-D, Line Signaling)  
• RTP/UDP/IP/GigE or ATM; ATM UNI, AAL2 and AAL5  
• Standardized protocols and open  
interfaces support  
2. Bearer Support  
• 21,000+ VoIP or VoATM channels,  
fully protected  
TDM: G.711, u-law and a-law  
• IP/ATM: G.711, G.726, G.729a, G.723.1, Clearmode, AMR, EVRC*  
• Echo: G.168, G.164, G.165, up to 128ms tail  
• Silence suppression/comfort noise generation  
• Fixed and adaptive jitter buffer  
• 80,000+ TDM channels,  
fully protected  
Benefits  
• Standard and custom announcements  
• High density  
• Call progress tones  
• Multi-protocol, mutli-application  
• Open, scalable  
• Support of bearer path packet duplication for a CALEA/LI and handover solutions  
• Ability to interconnect with a CALEA/LI server via supported interfaces  
3. Capacity  
• Latency-free TDM switching  
• 21,504 VoIP or VoATM channels, fully protected  
• 80,640 TDM channels, fully protected  
• Complete range of packet and  
legacy interfaces  
4. Redundancy and Availability  
• 1:N redundant Voice over Packet server modules  
• 1:N redundant TDM I/O modules (electrical)  
• 1+1 TDM I/O modules (optical)  
• 1:1 Ethernet I/O modules  
Applications  
• Class 5 end office, Class 3 or 4  
tandem switching  
• Simultaneous legacy and IP access  
support  
• 1+1 ATM AAL2 modules  
• Media Gateway for GSM and UMTS  
Radio Access Network  
• 1:1 System Processor modules  
• 1:1 Switch Fabric modules  
• 3GPP/3GPP2 IMS Media Gateway  
 

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