User`s manual

Version 5.4 559 May 2008
SIP User's Manual 16. Selected Technical Specifications
Function Specification
Full-Duplex Parties
per Conference
Bridge (Max.)
60
Fax/Modem Relay
Fax Relay
 Group 3 fax relay up to 14.4 kbps with auto fallback
 T.30 (PSTN) and T.38 (IP) compliant, real time fax relay
 Tolerant network delay (up to 9 seconds round trip)
 CNG tone detection & Relay per T.38
 Answer tone (CED or AnsAm) detection & Relay per T.38
Fax Transparency
Automatic fax bypass (pass-through) to G.711, ADPCM or NSE bypass
mode
Modem Transparency
 Automatic switching to PCM or ADPCM on V.34 or V.90 modem
detection
 Automatic switching (pass-through) to PCM, ADPCM or NSE bypass
mode for modem signals (V.34 or V.90 modem detection)
Protocols
VoIP Signaling
Protocol
SIP RFC 3261
Communication
Protocols
 RTP/RTCP packetization
 IP stack (UDP, TCP, and RTP)
 Remote Software load (TFTP, HTTP and HTTPS)
Telephony Protocols
 PRI (ETSI Euro ISDN, ANSI NI2, 4/5ESS, DMS 100, QSIG, Japan
INS1500, Australian Telecom, New Zealand Telecom, Hong Kong
Variant, Korean MIC)
E1/T1 CAS protocols: MFC R2, E&M wink start
 BRI protocols (ETSI 5ESS and QSIG over BRI)
 Immediate start, delay start, loop start, ground start
 Feature Group B, D for E1/T1
In-Band Signaling
 DTMF (TIA 464A)
 MF-R1, MFC R2
 User-defined Call Progress Tones
Line Signaling
Protocols
Loop start and ground start
The standard FXO module supports outdoor and indoor (lightning
protection) loop-start signaling. The FXO G module supports both loop-
and ground-start signaling (but only supports indoor protection).
CPU
Network Interface
Two Ethernet RJ-45 connectors, 10/100Base-TX
RS-232 Interface
RS-232 terminal interface. Non-standard RS-232 connector on the
device’s CPU.
Reset
Resets the device
Dry Contact
NB (Night Bell) and paging
Audio I/O
MOH (Music on Hold) and paging