Grandstream GXW4232 Gateway GXW4232

>Highlights
– 16 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: 24mm
– Width: 440mm
– Depth: 250mm
– Product type: Analogue VoIP gateway

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

> Technical specification
– Number of telephone channels: 16
– Telephone interfaces: 16 x RJ11 FXS interfaces plus 1 x 50 PIN Telco Connector –
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 via IP: T.38 and pass-through
– Signalling: Kewl Start, Loop Start
– Caller ID transmission: BELL202, ETSI (V23), NTT (V23-Japan) and DTMF based –
Disconnection: busy tone, polarity reversal
– LAN : 1 (10/100 Mbps)
– Network: Static IP, DHCP client, firewall, VLAN, DDNS, QoS, OpenVPN
-NAT traversal: Static NAT, STUN
-Power adapter: AC 100-240V / 50-60Hz
-Operating temperature: 0°-50°C, 32°-122°F
-Storage temperature: -20°-65°C, 4 ° – 149 °F
Humidity: 10-90%, non-condensing

>Features
-Three-way conference -Announcement transfer
-Blacklist
-No
-Announcement transfer
-Call data logging
-Caller ID
-Call forwarding on no answer, busy or always
-Call waiting –
Call status display
– Do Not Disturb (DND)
– IP blacklist –
Network attack alerts
– Paging (radio call)
– RADIUS accounting and login (RADIUS server)
-Real Open API Protocol (Asterisk

– 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