– 4 FXS ports (analogue interfaces)
– Full compliance with the SIP and IAX2
standards – Flexible call rules
– Reliable fax functions via T.38
– Offers high-quality voice compression with industry-standard codecs –
Echo cancellation with 32, 64 or 128 ms echo delay
-Web-based graphical user interface for easy configuration and management
-Excellent compatibility with a wide range of legacy and IP devices

> Key features
– Colour: Black
– Height: 25.6 mm
– Width: 200 mm
– Depth: 137 mm
– Product type: Analogue VoIP gateway

> system connections
– Number of Ethernet ports 10/100 Mbit/s: 1

> Technical specification
– Number of telephone channels: 4
– Telephone interfaces: 4 x RJ11 FXS interfaces –
Protocol: SIP (RFC3261), IAX2
– Transport protocols: UDP, TCP, TLS, SRTP –
DTMF: RFC2833, SIP INFO, In-band
-Codec: G.711 a/u-law, G.722, G.726, G.729a, GSM, ADPCM, Speex –
Echo cancellation: ITU-T G.168 LEC
-FAX over IP: T.38 and pass-through
-Signalling: Kewl Start, Loop Start
-Number portability: BELL202, ETSI (V23), NTT (V23-Japan) and
-DTMF-based
-Disconnection: busy tone, polarity reversal

>Features
-Three-party
conference -Switcher announcement
with blacklist
-No announcement transfer
-Call detail recording
-Caller ID
-Call forwarding on no answer, busy or always
-Call waiting
-Call status display
-Do Not Disturb (DND)
-IP blocklist
-Alert on network attacks
-Paging (radio) Call