User`s manual

1.2 Features and specification
Features
● IETF RFC 3261
● Automatically Dial Path Selection (IP or PSTN)
● PSTN Line switch to telephone set when power is failure
● PPPoE support
● Behind NAT router or IP sharing device
● DNS server inquiry
● Provide Peer-to-Peer Mode (Non SIP Proxy needed) selection
● E.164 Dial Plan
● TFTP/FTP software upgrade
● Remote configuration/ reset
● LED indication for system status
● Support Fix IP, DHCP and PPPoE
Audio feature
● Codec -- G.711 a/µlaw, G.723.1 (6.3kbps), G.729, G.729A
● G.168/165-compliant adaptive echo cancellation
● Dynamic Jitter Buffer
● Completed voice band signaling support
● Provide In-band or RFC2833 DTMF generation/detection
● Provide call progress tone
Management Feature
● TELNET/Console port and Web Browser configuration
Certification
● UL, CE, FCC
FXS Features
● 2-wire loop start
● Programmable On-Hook voltage, Ring voltage/Cadence/Frequency,
Loop current
● Line polarity reversal generation
6