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Yeastar TA400 FXS VoIP Gateway with 4 Analog Ports for Legacy Phone Integration to IP Networks

Name: Yeastar TA400 FXS VoIP Gateway with 4 Analog Ports for Legacy Phone Integration to IP Networks
Rating: 5.0 (2 reviews)

Delivery Time: 0-3 days

Brand Yeastar

Model Number TA400

UPC 6926150033719

Manufacture Warranty

EpicRise Warranty 1 Year

Product Highlights

• 4 FXS ports enable seamless connection of legacy analog phones, fax machines, and traditional PBX systems to modern IP networks

• Full SIP (RFC3261) and IAX2 protocol compliance ensures broad interoperability with Asterisk, 3CX, Elastix, and Lync Server platforms

• T.38 fax support and ITU-T G.168 echo cancellation deliver reliable fax transmission and clear voice quality over VoIP

• Advanced QoS with DiffServ, ToS, and 802.1P/Q VLAN tagging prioritizes voice traffic for consistent call performance

• Web-based management interface with flexible dial plans, call routing, and integrated firewall simplifies deployment and administration

Overview
Specifications
FAQ
User Guides
Reviews

The Yeastar TA400 FXS VoIP Gateway bridges the gap between legacy analog telephony infrastructure and modern IP-based communication systems. Designed for enterprises seeking to preserve investments in existing analog equipment while migrating to cost-effective VoIP networks, this gateway delivers carrier-grade reliability with comprehensive SIP and IAX2 protocol support. IT decision-makers gain a turnkey solution for connecting traditional phones, fax machines, and analog PBX systems to IP-PBX platforms without replacing functional equipment.

With 4 FXS ports, the TA400 supports simultaneous connections for multiple analog devices, enabling organizations to incrementally transition to VoIP while maintaining operational continuity. The gateway's support for industry-standard codecs (G.711, G.729A, G.722) and advanced voice processing features—including echo cancellation, jitter buffering, and T.38 fax relay—ensure clear communications and reliable fax transmission over IP networks. Built-in QoS mechanisms and VLAN support allow network administrators to prioritize voice traffic and segment telephony infrastructure for optimal performance.

Best For

The TA400 addresses specific deployment scenarios where organizations need to integrate analog telephony equipment into IP-based communication environments:

- Legacy PBX Integration: Connects existing analog PBX systems to SIP trunks, enabling cost savings on long-distance and international calls without replacing the entire phone system

- Branch Office Deployments: Provides remote sites with analog phone connectivity to centralized IP-PBX systems over WAN links, reducing hardware costs at satellite locations

- Fax Server Connectivity: Reliably connects analog fax machines to VoIP networks with T.38 protocol support, maintaining fax functionality during VoIP migration

- Analog Device Preservation: Extends the useful life of functional analog phones, intercoms, and door phones by enabling their use as extensions on modern IP-PBX platforms

- Multi-Tenant Environments: Supports flexible dial plans and call routing for property management, educational campuses, and healthcare facilities with diverse analog telephony requirements

Key Features

- Dual protocol support (SIP RFC3261 and IAX2) with UDP, TCP, TLS, and SRTP transport options provides flexibility for secure and standard-compliant VoIP deployments

- Comprehensive codec library (G.711, G.722, G.723, G.726, G.729A/B, GSM, ADPCM) optimizes bandwidth usage and voice quality across varying network conditions

- ITU-T G.168 line echo cancellation with configurable tail length (8-128 ms) eliminates echo artifacts on long-distance and VoIP calls

- T.38 fax relay and pass-through modes ensure reliable fax transmission over IP networks, supporting business-critical document workflows

- Advanced call handling features including 3-way conferencing, attended/blind transfer, call forwarding, call waiting, and distinctive ringtones replicate traditional PBX functionality

- QoS implementation through DiffServ, ToS, and 802.1P/Q VLAN tagging prioritizes voice packets and segments traffic for predictable call quality

- Integrated security with built-in firewall, IP blocklist, attack alerts, and NAT traversal protects against unauthorized access and network-based threats

- Web-based GUI with flexible dial plans, CDR (Call Detail Records), and remote management capabilities streamlines configuration and ongoing administration

Quick Specs

FXS Ports	4 x RJ11
Network Interface	1 x 10/100BASE-T Ethernet (RJ45)
VoIP Protocols	SIP (RFC3261), IAX2
Transport Protocols	UDP, TCP, TLS, SRTP
Voice Codecs	G.711 (a/μ-law), G.722, G.723, G.726, G.729A/B, GSM, ADPCM
Fax Support	T.38, Pass-through
Echo Cancellation	ITU-T G.168 LEC (8/16/32/64/128 ms tail)
DTMF Modes	RFC2833, SIP Info, In-band
QoS	DiffServ, ToS, 802.1P/Q VLAN tagging
Network Features	VLAN, NAT Traversal, DDNS, Radius
Management	Web-based GUI, TR-069, Remote Management
Power Input	12V DC, 1A
Dimensions (W×D×H)	200 × 137 × 25 mm (7.87" × 5.39" × 0.98")
Operating Temperature	0 to 40°C (32 to 104°F)
Humidity	10% to 90% (non-condensing)
Mounting Options	Desktop, Wall-mount

What's Included

- Yeastar TA400 Gateway Unit

- Power Adapter (12V 1A)

- Ethernet Cable

- Quick Installation Guide

Product Details
Power Source	DC-powered

What deployment scenarios is the TA400 best suited for?

The TA400 is designed for organizations migrating legacy analog equipment to VoIP infrastructure. It excels in branch office deployments connecting analog phones to centralized IP-PBX systems, integrating traditional PBX systems with SIP trunks for toll bypass, and connecting analog fax machines or door phones to modern VoIP platforms. The 4-port capacity suits small offices, retail locations, or departmental deployments needing limited analog connectivity.

How does the TA400 compare to higher-port models in the Yeastar TA series?

The TA400 provides 4 FXS ports with identical protocol support, codec capabilities, and management features as larger TA800, TA1600, and TA2400 models. Organizations should choose the TA400 when supporting 4 or fewer analog devices per location, reserving higher-port models for larger deployments. All TA series gateways share the same firmware feature set and configuration interface, allowing consistent management across mixed deployments.

Is the TA400 price point justified compared to analog telephone adapters?

The TA400 delivers carrier-grade features including ITU-T G.168 echo cancellation, T.38 fax relay, VLAN segmentation, and advanced QoS that consumer-grade ATAs lack. The web-based management, flexible dial plans, CDR reporting, and integrated firewall reduce ongoing administration costs in enterprise environments. Organizations requiring reliable fax transmission, quality voice processing, or managing multiple analog devices gain measurable ROI through reduced support incidents and operational flexibility.

Which IP-PBX platforms and VoIP systems is the TA400 compatible with?

The TA400 is compatible with any SIP-compliant or IAX2-capable phone system. Verified interoperability includes Yeastar S-Series PBX (with auto-provisioning), Asterisk, 3CX, Elastix, FreePBX, and Microsoft Skype for Business/Lync Server. The gateway supports standard SIP trunking services from major VoIP providers. NAT traversal and flexible SIP signaling options ensure connectivity across diverse network topologies and firewall configurations.

What voice codecs does the TA400 support and how do they affect bandwidth?

The TA400 supports G.711 (64 kbps, uncompressed toll quality), G.729A/B (8 kbps, highly compressed), G.722 (64 kbps wideband), G.726 (16-40 kbps), G.723 (5.3-6.3 kbps), GSM (13 kbps), and ADPCM (32 kbps). Organizations can select G.729A for bandwidth-constrained WAN links, G.722 for high-quality local calls, or G.711 for maximum compatibility and voice clarity. The gateway performs real-time transcoding when endpoints use different codecs.

Does the TA400 require external power supplies for connected analog phones?

The TA400 FXS ports provide standard loop current to power connected analog phones directly without external power injectors. Each FXS port supplies sufficient power for standard analog telephones and fax machines. Analog devices with high power requirements (certain cordless base stations or specialized equipment) may need separate power adapters as the gateway provides telephony signaling voltage but limited current capacity per port.

Can the TA400 be managed remotely and what protocols are supported?

The TA400 supports remote management through HTTPS web interface access, TR-069 auto-provisioning protocol, and Radius authentication integration. Administrators can configure dial plans, monitor call status, download CDR reports, and update firmware from any network location with IP connectivity to the gateway. Built-in DDNS support enables remote access when the gateway is deployed behind dynamic IP addresses at branch locations.

What mounting options are available and what physical space is required?

The TA400 supports desktop placement using included rubber feet or wall mounting with provided brackets and screws. The compact footprint (200 × 137 × 25 mm or 7.87" × 5.39" × 0.98") fits standard equipment racks, wall-mount installations, or desktop placement in space-constrained environments. Wall-mount orientation allows vertical installation to minimize desk space usage in offices or retail counters.

Regular price: $129.00
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