Version 6.2  887  February 2011 
SIP User's Manual   14. Technical Specifications 
 
14 Technical Specifications 
The device's technical specifications are listed in the table below. 
Table  14-1: Technical Specifications 
Function  Specification 
Interfaces 
PSTN 
Capacity Voice interfaces: 8 analog PSTN interfaces, 4 FXS and 4 
FXO 
The configuration is fixed and is not field upgradable or changeable 
Future support for up to 12 analog PSTN interfaces, 4 BRI ports and 
single E1/T1/J1 span module 
Digital Interfaces* (Optional) 
Single span E1/T1/ using RJ-48c connectors 
Analog Interfaces (Optional) 
4 ports FXO and 4 FXS ports using RJ-11 connectors 
Option of 1 FXS Lifeline ports in case of power failure 
FXS Loop Impedance: Up to 1,600 Ohms 
BRI Interfaces* (Optional) 
4 BRI ports (8 calls), network S/T interfaces. NT or TE termination 
Networking Interfaces 
WAN (Optional) 
WAN interface 10/100/1000 Base-T Copper 
Support for T1, SHDSL, ADSL2+* and Optical Gigabit Ethernet* 
LAN 
4 ports 10/100/1000Base-T and additional 8 10/100Base-TX ports, 
PoE- Power-Over Ethernet on all ports is optional (Compliant to 
802.3af-2003 with auto-detection Up to 15.4W per port), PoE 
management 
WiFi* (Optional) 
WiFi Access Point support for 802.11 a/b/g/n 
OSN Server Platform (Optional) 
Single Chassis Integration 
Embedded, open Network Solution Platform for third-party services 
CPU 
Intel Atom 1.6 GHz 
Memory 
1G RAM 
Storage 
SATA storage 
Media Processing 
Voice Coders 
G.711, G.723.1, G.726, G.729A, and AMR-WB (G.722.2), G.722 
Independent dynamic vocoder selection per channel 
Echo Cancellation 
G.165 and G.168-2002, with 32, 64 or 128 msec tail length 
Quality Enhancement 
Dynamic programmable jitter buffer, VAD, CNG 
DTMF/MF Tones 
Packet-side or PSTN-side detection and generation, RFC 2833 
compliant DTMF relay and Call Progress tones Detection and 
Generation 
IP Transport 
VoIP (RTP/RTCP) per IETF RFC 3550 and 3551, IPv6 Supported 
Fax Transport 
T.38 compliant (real time fax), Automatic bypass to PCM