VoIP Gateway K-1220 is designed to provide voice data for IP-data networks.
The gateway can be used in climatic conditions:
- ambient temperature from 238 to 323 K (from - 35 º to + 50 º C)
- relative humidity of not more than 98 % at 298 K (25 º C)
- atmospheric pressure of 60 kPa to 113 kPa.
The weight of the gateway - no more than 18 kg
Dimensions:
- Lengh - 490 mm;
- Width - 490 mm;
- Height - 300 mm
Technical specifications:
Gateway provides connectivity:
- 20 analog phones for two-wire subscriber lines (lines FXS);
- four-wire analog connection lines to connect to a private automatic branch exchange (PBX) (Line FXO);
- five devices enabled for Ethernet 10Base-T/100Base-TX;
- a device that supports the technology, Ethernet 100Base-FX;
- a personal computer (PC) through the RS-232
- an analog service with the TA local battery.
For the analog subscriber lines Gateway provides:
- the ability to install a voice connection with any local subscribers of the gateway and remote subscribers from other gateways
- reception rooms in the momentum and in the tone (DTMF) set
- the generation of tone for FXS lines and detection tone for lines FXO;
- the call forwarding service
- transfer of facsimile (fax transmission protocol is supported through VOIP - T. 38).
Gateway supports the following voice codecs:
- G.711 (A-Law, u-Law);
- G.723.1;
- G.729 a / b.
To improve the quality of the voice gateway uses algorithms for echo cancellation G.165 / G. 168.
For correct transmission of DTMF tones on IP-networks gateway supports the protocol RFC2833.
To establish a VoIP-connections on IP-networks, the gateway supports the following signaling protocols:
- ITU-T H.323 version 4 (read more - H.323);
- SIP RFC3261 2.0 (more - SIP).
Gateway has the opportunity to work as a central device for interoperability of other VoIP-devices (terminals , gateways, telephones, VOIP). This gateway supports the following protocols:
- H.323 Gatekeeper;
- SIP Proxy with the function of the Registrar (read more - SIP Proxy / registrar).
To allow for flexible adjustment of the registration plan gateway supports the numbering system E.164 public networks.
Power sypply:
- DC 27 V with a limit deviation of voltage from 18 to 36 V.