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SIP GSM FOX FXS Gateway Voip 2-In-1 For Ethernet Analog Phones Desktop

Categories Fiber Patch Cord
Brand Name: OPTFOCUS
Model Number: OFS-CG4N-412
Certification: CE
Place of Origin: CHINA
MOQ: 1 pcs
Price: negotiated
Payment Terms: L/C, T/T, Western Union,Paypal
Supply Ability: 10000pcs one month
Delivery Time: wihin 3-5 days after get payment
Packaging Details: The seller standard export package
Protocol: SIP & MGCP
Port: 2FXS+2FXO
Color: Black
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SIP GSM FOX FXS Gateway Voip 2-In-1 For Ethernet Analog Phones Desktop

SIP GSM FOX FXS Gateway Voip 2-In-1 For Ethernet Analog Phones Desktop

OFS-CG4 Serise Multi Gateway


OFS-CG4 Analog Telephone Adapters (ATA) series offers high quality low-density access devices used in residential, SOHO and mobile office VoIP applications. It provides reliable, low-cost, and flexible means to deploy converged communication solutions for network operators and enterprises. OFS-CG4 series can be configured as either 2-in-1 with connections to Ethernet and analog phones, or 3-in-1 with connections to Ethernet, analog phones and CO lines.

Consisting of 3 models, OFS-CG4 series is a desktop and wall mountable. The highly compact hardware with a ARM9 400M CPU supports the Linux kernel and the application software which inherits from the OPTFOCUS famous MX gateway design, delivering stable performance, high interoperability and compatibility, and rich features. OFS-CG4 series is a cost-effective entry-level VoIP device with the capability and quality seen in expensive VoIP equipments.

Key Features

  • Protocol: SIP & MGCP
  • 2-4 FXS/O Ports
  • Routing , CDR, BusyTone Detection,
  • DID, MWI T.38 Fax Relay,Echo Cancellation


SIP protocol









SIP registration (Per trunk, per gateway)

Registration expire setting

SIP trunk

Backup SIP proxy (Up to 10 proxies)

Peer-to-peer communication

SIP-to-SIP relay

Hook flash relay (INFO)


Hot line

Relay to FXS extension

Redirect to SIP server

Interactive Voice Response (IVR) and second-stage dialing

Outbound calls from either FXS or service network

Battery reversal detection

Caller ID detection (Bellcore and ETSI FSK, DTMF, before/after ring)

Busy tone detection

DTMF out-pulsing timing setting

Volume control

Ring parameter setting

Busyout when FXS is not available


Polarity reversal generation

Caller ID generation (Bellcore and ETSI FSK, DTMF, before/after ring)

Ring cadence setting

Ring frequency setting

Volume control

Hook flash timing setting

Message waiting indicator (FSK, polarity inverse)


G.711ALaw, G.711ULaw, G.729 (Note1) and G.729B (Note1)

T.30 fax transparent, T.38 fax relay (Note2)

Echo cancellation

Dynamic jitter buffer management

Static jitter buffer

DTMF relay (RFC 2833, SIP/INFO, inband)

Adjustable packetization period, 10/20/30/40/50/60ms

Call progress tones compliant with multi-nation standards

Voice QoS

IEEE 802.1p tag

DiffServ code point (TOS) bits

Call control

Blind transfer

Explicit transfer

Call forward on busy

Call forward on no answer

Call forward variable

Call waiting

Caller ID

Caller ID blocking

Caller ID on call waiting

Distinctive ring

Do not disturb

Music on hold

Color ring back tone

Call progress tone (Configurable)

Release control (Called party control, calling party control)

Built-in 3-way calling

Speed dialing

Calling and called number based routing

Call number modification (Add, delete and replace)

Hunt group (Sequential and circular hunt)

Ring group

Digit map

PSTN failover (Upon IP network break or failure to reach SIP proxy, or power break)


DHCP client

DNS/DDNS client

PPPoE client

NAT traversal (STUN)


IP filtering list (IP table)


Web-utility access privilege

(Admin and user)

System management

TR069-based management (TR069, TR104, and TR106)(Note1)

Standard SNMP agent,MIB v2(Note1)

Web-utility for configuration, data import/export, and firmware upgrade

Auto-provisioning for configuration and firmware upgrade

Log management (8 levels)


Debugging and call trace

TCP dump

System status monitoring and statistics (TR069, SNMP, Web)

Note1: The feature will be released in Q2 of 2011.

Note2: The feature will be released in Q3 of 2011.

Ordering info

OFS-CG4-4111FXS+1FXO,Support SIP,Support PSTN failover
OFS-CG4-4022FXS,Support Support SIP;
OFS-CG4-4222FXS+2FXOS,Support Support SIP,Support PSTN failover

Product Tags:

ftth drop cable


ftta fiber

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