16 and 32 FXS FXO Carrier-class VoIP Gateway SIP

Tainet Saturn VoIP Gateway provides a connection platform between traditional POTS lines and the Internet. Over various broadband technologies including xDSL, HFC, wireless and fibre, Saturn carries toll-quality voice, fax and data traffic simultaneously in a cost-effective way. Also, the VoIP Gateway supports intelligent features like a long loop, line testing, polarity reversal, caller ID, call transfer, call waiting and 3- way calling. The ideal applications include MTU/MDU, virtual PBX, IP Centrex, PBX extension and hosted telephony services




  • RFC 3261 SIP protocol VoIP Gateway
  • 16 / 32 FXS or 16 / 32 FXO Lines
  • 1WAN + 1LAN, RJ-45 10/100 baseT Ethernet
  • Interactive Voice Response (IVR)
  • T.30 and T.38 compliant
  • Line reversal and metering tone (12K/16KHz)
  • Ethernet switch function with QoS and VLAN
  • IGMP Proxy / Snooping
  • Advanced calling features, 3-Way Conference with/without media server, call parking and more
  • WEB based configuration (HTTP/HTTPs)
  • TR-069, TR-104, DHCP Auto Provision
  • SNMP V2/V1
  • IPv4, IPv6 support*


Voice Feature

  • G.722,G.711 a /μ-law, G.723.1, G.726, G.729A/B or GSM 6.10 Full Rate, ILBC13.3kbps
  • Silence Suppression & Detection
  • Comfort Noise Generation (CNG)
  • Voice Activity Detection (VAD)
  • Echo Cancellation (G.165/G.168)
  • Adaptive (Dynamic) Jitter Buffer
  • Call Progress Tone Generation (FXS)
  • Programmable Gain Control
  • Local Mixer
  • ITU-T V.152 Voice-band Data over IP Networks
SIP Method Support
SIP Call Features
  • Peer to Peer Call
  • Call Hold / Retrieve
  • Call Waiting
  • Call Pick Up
  • Call Park / Retrieve (with SIP Server)
  • Call Forward – unconditional, busy, no answer
  • Call Transfer – attended, unattended
  • Speed Dialing
  • Repeat Dialing
  • Three-way Calling
  • MWI (RFC-3842)
  • Hot Line and Warm Line
SIP Call Management
  • Support Outbound Proxy
  • Support up to three SIP servers
  • SIP Registration Automatic Failover
  • Group Hunting
  • Privacy Mechanism /Private Extension to SIP
  • Session Timers(Update / Re-invite)
  • DNS SRV Support
  • Call Types: Voice/ Modem/ FAX
  • Call Routing by Prefix Number
  • User Programmable Dial Plan
  • By routing Calling Number Manipulation
  • RADIUS CDR Client
  • Manual Peer Table(for P2P calls)
  • E.164 Numbering, ENUM support
SIP Account Management
  • By port registration
  • By device registration (share account)
  • Mixed mode (Hunt number for inbound, by port number for outbound)
  • Invite with Challenge
  • Register by SIP Server IP Address or Domain Name
  • Support RFC3986 SIP URI format
Physical Interface
  • WAN: 1 x 10/100 Ethernet, auto crossover, auto speed negotiation, RJ-45
  • LAN: 1 x 10/100 Ethernet, auto crossover, auto speed negotiation, RJ-45
  • 1 x RJ21 female connector for FXS line wiring
  • Power jack, Power switch, Reset button
Telephony Specification
  • In-Band DTMF, Out-of-Band DTMF Relay (RFC2833 or SIP INFO)
  • DTMF / PULSE Dial Support
  • Caller ID Generation(FXS) and Detection(FXO):


.FSK-Bellcore Type 1 & 2

.FSK-ETSI Type 1 & 2


.FSK: Calling Name, Number, Date and Time, VMWI

  • FXS metering pulse:

.Polarity Reversal

.12kHZ calling tone

.16kHZ calling tone

  • Polarity Reverse
  • T.30 FAX bypass, T.38 Real-Time FAX Relay
  • FXS Line test and diagnostics with visual alarm indication
  • Inward self-test:

.Loopback – codec

.Loopback – analogue


.Outward Test (GR909 Standard):


.Phone Line disconnected

.H.F. AC Voltage (Hazardous and foreign AC Voltage)

  • Fax and Modem over IP (up to 14,400bps)
  • Failsafe mechanism: FXS auto or manual relay to FXO through hardware relay or internal PCM Bus while Network, Service or power failure occurs
  • ROH Tone( Receiver Off-Hook Tone@480 Hz)
  • Loop Current Suppression
LED Indicators
  • Power, VoIP, Alarm, Run, WAN, LAN, Phone off-hook 1~32 / Phone Ch Alarm 1~32, Line 1~32
  • RJ21 to RJ11-male cable
  • RJ45 cable
  • AC Power cord
  • User Manual in CD
  • Rackmount kit
General Information
  • Dimensions : 44.5 (W) x 33 (D) x 4.5 cm (H)
  • Weight : 4.4 Kg
  • Power : AC 100~240 V 50/60Hz input
  • Operating temperature :0°C~ 45 °C
  • Storage temperature : – 25°C~ 75 °C
  • Operating Humidity : Up to 90% RH, non-condensing
IP Network Specification
  • Support IPv4, IPv6 future upgradeable
  • WAN: Static IP, PPPoE, DHCP, PPTP
  • Network Protocol Support:
  • IP, TCP, UDP, TFTP, FTP, RTP, RTCP, XR, ARP, RARP, ICMP, NTP, SNTP, HTTP, HTTPS, DNS, DNS SRV, Telnet, DHCP Server, DHCP Client, SNTU Client, UPnP, IGMP, IGMP snooping, IGMP proxy


QoS Support
  • WAN: DiffServ, IP Precedence

.Priority Queue

.Rate Control

.802.1Q (VLAN Tagging), 802.1p (Priority Tag)

  • LAN: Rate Limit
DDNS Support
  • Dyndns.org (Dynamic and Custom)
  • TZO
  • Peanut Hull
Network Security Specifications
  • PPTP Client
  • DIGEST Authentication
  • MD5 Encryption
  • DoS Protection
  • Web Based Configuration
  • Auto- provisioning (HTTP/ HTTPS/ TFTP)
  • Telnet
  • IVR
  • FTP/ TFTP/ HTTP Software Upgrade
  • Configuration Backup and Restore
  • Reset to Default Button
  • TR-069, TR104 (optical)
SIP, Voice and FAX Related Standard
  • RFC3263 Session Initiation Protocol (SIP): Locating SIP Servers
  • RFC3264 An Offer/Answer Model with Session Description Protocol (SDP)
  • RFC3265 Session Initiation Protocol(SIP)-Specific Event Notification
  • RFC3311 The Session Initiation Protocol (SIP) UPDATE Method
  • RFC3323 A Privacy Mechanism for the Session Initiation Protocol (SIP)
  • RFC3325 Private Extensions to the Session Initiation Protocol (SIP) for Asserted Identity within Trusted Networks
  • RFC3362 Real-time Facsimile (T.38) – image/t38 MIME Sub-type Registration
  • RFC3515 The Session Initiation Protocol (SIP) Refer Method
  • RFC3550 RTP: A Transport Protocol for Real-Time Applications. July 2003
  • RFC3842 A Message Summary and Message Waiting Indication Event Package for the Session Initiation Protocol (SIP)
  • RFC3665 Session Initiation Protocol (SIP) Basic Call Flow Examples
  • RFC3824 Using E.164 numbers with the Session Initiation Protocol (SIP)
  • RFC3841 Caller Preferences for the Session Initiation Protocol (SIP)
  • RFC3261 SIP: Session Initiation Protocol
  • RFC3262 Reliability of Provisional Responses in Session Initiation Protocol (SIP)
  • RFC1889 RTP: A Transport Protocol for Real-Time Applications.
  • RFC2543 SIP: Session Initiation Protocol
  • RFC2833 RTP Payload for DTMF Digits, Telephony Tones and Telephony Signals
  • RFC2880 Internet Fax T.30 Feature Mapping
  • RFC2976 The SIP INFO Method
  • RFC3891 The Session Initiation Protocol (SIP) “Replaces” Header
  • RFC3892 The Session Initiation Protocol (SIP) Referred-By Mechanism
  • RFC3960 Early Media and Ringing Tone Generation in the Session Initiation Protocol (SIP)
  • RFC3986 Uniform Resource Identifier (URI): Generic Syntax
  • RFC4028 Session Timers in the Session Initiation Protocol (SIP)
  • Draft-IETF-sipping-service-examples-08 for call features

Network Related Standard

  • RFC318 Telnet Protocols
  • RFC791 Internet Protocol
  • RFC792 Internet Control Message Protocol
  • RFC793 Transmission Control Protocol
  • RFC768 User Datagram Protocol
  • RFC826 Ethernet Address Resolution Protocol
  • RFC959 File Transfer Protocol
  • RFC1034 Domain Names – concepts and facilities
  • RFC1035 Domain Names – implementation and specification
  • RFC1058 Routing Information Protocol
  • RFC1157 Simple Network Management Protocol (SNMP)
  • RFC1305 Network Time Protocol (NTP)
  • RFC1321 The MD5 Message-Digest Algorithm
  • RFC1349 Type of Service in the Internet Protocol Suite
  • RFC1350 The TFTP Protocol (Revision 2)
  • RFC1661 The Point-to-Point Protocol (PPP)
  • RFC1738 Uniform Resource Locators (URL)
  • RFC2854 The ‘text/HTML Media Type
  • RFC2131 Dynamic Host Configuration Protocol
  • RFC2136 Dynamic Updates in the Domain Name System (DNS UPDATE)
  • RFC2327 SDP: Session Description Protocol
  • RFC2474 Definition of the Differentiated Services Field (DS Field)
  • RFC2516 A Method for Transmitting PPP Over Ethernet
  • RFC2616 Hypertext Transfer Protocol – HTTP/1.1
  • RFC2617 HTTP Authentication: Basic and Digest Access Authentication
  • RFC2637 Point-to-Point Tunneling Protocol
  • RFC2766 Network Address Translation – Protocol Translation (NAT-PT)
  • RFC2782 A DNS RR for Specifying the Location of Services (DNS UPDATE)
  • RFC2818 HTTP Over TLS (HTTPS)
  • RFC2916 E.164 Number and DNS
  • RFC3022 Traditional IP Network Address Translator
  • RFC3489 STUN – Simple Traversal of User Datagram Protocol (UDP)Through Network Address Translators (NATs)