Product Name: Speed VoIP Adapter/ATA/Gateway 4 FXS
Price: US$
Detail: Supporting multiple FXS && FXO voice ports and two 10/100BaseT Ethernet ports, the gateway can make use of existing Ethernet LANs in7 addition to xDSL or cable broadband modems. Connect a traditional telephone and a FAX machine to your computer?#65533;�s VoIP network; or deploy a second-line service to take advantage of emerging telephony applications.

Modle: SPE 4.0(4 FXS), SPE 4.2pro(4 FXS 2 FXO)

Product Key Features

- Supports TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP/RARP, DNS, DHCP (both client and server), PPPoE, TFTP etc
- Built-in router, NAT and Gateway
- Supports SIP
- Multiple(1/2/4) FXS and necessary FXO ports with independent telephone numbers
- Simultaneous signaling and media encrypting and mangling
- Free access to customer network
- Intelligent voice routing and discovery
- Interoperable with various market-leading third party Softswitch or Sip Server
- Supports popular voice-coders including G.723, G.729AB and G.711 (A law and U-law), FAX and Modem pass-through
- Supports PSTN-Relay in case of power failure and external control
- Supports standard voice features such as Caller Id, Consultation Hold, Call Waiting, Blind Call Transfer, Attended Call Transfer, Call Forward, Mid-Call DTMF, Flash, Three-way Conference
- Supports Silence Suppression, VAD (Voice Activity Detection), CNG (Comfort Noise Generation), AGC and Line Echo Cancellation G.168 128ms
- Supports DIGEST authentication (MD5 only)
- Supports layer-3 (DiffServ, ToS) QoS
- Supports automated NAT traversal without manual manipulation of firewall/NAT
- Supports remote automated provisioning and software upgrade even through firewall/NAT to enable "zero configuration" and "plug-and-dial" for end users
- Supports device configuration via built-in IVR by dialpad, Web browser or central configuration file
- Intelligent powerful proprietary AVMP management scheme
Standards-based implementation (ITU-T, IETF compliant)