Excellence in Broadcast

Tieline Gateway 8 & 16

The Tieline Gateway is the most powerful DSP-based 1RU IP codec enabling transport of multiple channels of mono or stereo audio across the public internet and any QoS-enabled IP network, including T1 and T3 connections and private WANs with MPLS. The Gateway streams up to 16 IP audio channels with support for AES67, ST 2110-30, AES3 and analogue I/O as standard.


The Tieline Gateway introduces a new era in high-density multichannel IP codec streaming. The Gateway supports up to 16 mono channels or 8 stereo streams of bidirectional IP audio in 1RU to increase efficiency and reduce rack space requirements. It interfaces easily with legacy analogue and AES/EBU digital sources, as well as newer broadcast plants with AES67 and ST 2110-30 IP audio infrastructure. An optional WheatNet-IP card is also available.

The Gateway is perfect for large-scale audio distribution to single or multiple locations, as well as managing multiple incoming remotes at the studio using SmartStream PLUS redundant IP streaming and Fuse-IP data aggregation technologies over internet connections. It is interoperable with all Tieline IP codecs and compatible over SIP with all EBU N/ACIP Tech 3326, 3347 and 3368 compliant codecs and devices.

Features at a Glance

Analogue, AES3

Support for AES67, plus AES3 (AES/EBU)
and analogue I/O options

Wi-Fi (USB Dongle)

Expand your network options and connect over Wi-Fi networks

SIP and IP Intercoms

SIP EBU Tech 3326, 3368, and EBU Tech 3347

Dual AoIP Ports

Stream AoIP from dual ports

SD card

SD card slot for firmware upgrades, storage and SDIO

Dual USB ports

Dual USB ports support firmware upgrades, storage and Wi-Fi modems.

Dual Internal Power Supplies

Dual power supplies provide backup if one fails

Dual Ethernet Ports

Connect using different Telcos for diversity using SmartStream PLUS redundant streaming

Module Compatible

Module slot for future hardware innovations


Support for multiple simultaneous multi-unicasts over compatible IP networks to up to 80 endpoints

Simultaneous Multicast

Support for multiple simultaneous multicasts over compatible IP networks to unlimited endpoints


Silence Detection, PSU Failure, Lost connection, Temperature, AES Input, AES Reference, SNMP and more

Internal SSD Storage

Internal Storage for recording streams

Expanded Backup Options

Multiple levels of power, audio and network redundancy. The codec features dual Gigabit Ethernet ports, dual internal power supplies, automated audio silence detection and IP network backup solutions to ensure you’re always on the air.

AoIP Interfaces


Purchase with an optional WheatNet-IP card for interoperability with WheatNet-IP networks
Note: Optional at time of Purchase

AES67 Ready

Ready out-of-the-box so forget hardware card upgrades, just connect and go!

ST 2110-30 Ready

SMPTE ST 2110-30 compliant out-of-the-box


SmartStream PLUS redundant streaming

Connect multiple IP links to codecs and use SmartStream PLUS to stream simultaneous redundant data streams and deliver seamless redundancy when streaming over IP.

Bond multiple interfaces with Fuse-IP

Imagine the peace of mind knowing you can bond data links from different Telcos and let Tieline’s Fuse-IP technology automatically manage the data capability of each link!


Perfect for STL, SSL and audio distribution applications, with support for multicasting and multiple unicasting technologies. It is also perfect for managing multiple incoming remotes at the studio and can simultaneously connect to up to 16 hardware codecs or Report-IT Enterprise smartphone app users.

    Studio-To-Transmitter Links (STL)
    Studio-To-Studio Links (SSL)
    Audio Distribution
    Managing multiple incoming remotes at the studio

Multiple Backup Options

The Gateway has multiple levels of power, audio and network redundancy. The codec features dual Gigabit Ethernet ports, dual internal power supplies, automated audio silence detection and IP network backup solutions to ensure you’re always on the air.

Automated network failure detection provides auto switching to a backup IP connection. The codec can automatically switch between 4 backup audio sources to maintain program output at transmitter sites. Options include:

    Connection audio.
    Icecast streaming client.
    Audio file backup.
    Hardware bypass of audio inputs to outputs if power fails.


    Dimensions: 19” x 1 3/4” x 11 13/16” [482mm (W) x 44.45mm (H) x 300mm (D)] excluding rear connectors
    Weight: 4 Kg /8 lb 13.100 oz
    Power: Dual AC 90-240V IEC power inlets; 2A 50-60 Hz
    Operating temp: 0°C to 45°C (32°F to 113°F)
    Humidity: 20% ≤RH ≤70% (0 to 35°C/32°F to 95°F), non-condensing


    IP Algorithms: Tieline Music, Tieline MusicPLUS, Opus, G.711, G.722, MPEG Layer 2, MPEG Layer-3 LC-AAC, HE-AAC, HE-AACv.2, AAC-LD, AAC-ELD, 16/24 bit aptX® Enhanced algorithm*
    IP (uncompressed): Linear PCM16/24 bit 32kHz, 44.1kHz, 48kHz, 96kHz sampling


    Robust dual DSP-based architecture designed for rock solid, mission critical STL audio
    Linear PCM16/24 bit 32kHz, 44.1kHz, 48kHz, 96kHz sampling
    Bidirectional mono, 3 mono, 6 mono, 8 mono and 16 mono connections and triple mono connections
    Distributing up to 16 bidirectional channels between two codecs
    Up to 8 bidirectional stereo connections.
    2 stereo and 2 mono bidirectional connections
    1 stereo and 4 mono bidirectional connections.
    Simultaneously distributing one, two, three or six separate IP multi-unicast audio streams to a maximum of 60 endpoints in total.
    Broadcasting up to 6 separate IP audio streams in multicast server mode and distributing each of these streams to unlimited endpoints over compatible IP networks.
    Popular algorithms including LC-AAC, HE-AAC v1 and v2, AAC-LD, AAC-ELDv1 and v2, Opus, MPEG II, MPEG Layer-3, Tieline Music and MusicPLUS, G.722 and G.711.
    Internal SSD storage as standard
    Low-delay, cascade resilient aptX® Enhanced algorithm*
    Optional WheatNet-IP card*
    Up to 8 stereo or 16 mono WheatNet-IP audio channels in/out.


    Dual Gigabit (10/100/1000) Ethernet ports support automatic switching for redundancy
    Dual AoIP ports for AES67 / SMPTE ST 2110-30 audio over IP streaming
    Connect over Wi-Fi using USB Wi-Fi dongles*
    Automated failover to backup connections.
    Support for up to 4 output audio source fail over options
    SmartStream PLUS dual redundant IP streaming
    Fuse-IP network bonding (data aggregation)
    SIP (SDP) compliant with EBU N/ACIP Tech 3326 and 3368 for interoperability with other codecs
    I3P EBU Tech 3347 integration for Intercom compatibility over IP
    Deterministic SIP answering and call routing: Configure up to 16 SIP accounts and connect up to 2 SIP interfaces
    Selectable fixed or automatic jitter buffer: 5 automated settings available to manage network connectivity and avoid dropouts (includes configurable min and max buffer settings).
    Configurable Forward Error Correction (FEC)
    Highly advanced error concealment strategies
    Real-time IP connection packet statistics
    Real-time IP link quality displayed.
    Support for Line Hunt dialing/answering and caller IDs using Tieline IP


    Full hardware front panel interface including navigation, LCD display, PPM meters and dialing key pad
    User-friendly HTML5 Toolbox Web-GUI enables codec configuration and control remotely over WANs
    AES67 Web-GUI for configuration of AES67 and ST 2110-30 audio streams over and AES67 LAN
    Toolbox Scheduler supports loading/unloading, connecting and disconnecting programs
    Use the Cloud Codec Controller to configure & manage your entire codec network remotely
    The TieLink Traversal Server makes dialing easy with centralized contact list management and self discovery of codecs within customized call groups
    Auto switching, dual internal AC power supplies
    IPv4 & IPv6 compatible and ready
    Asymmetric algorithmic encode/decode
    Integrated alarm management including automatic silence detection
    Low latency in-band RS-232 aux data channel
    Configurable software rules engine via web-GUI for Control Port (16 GPIOs), plus WheatNet-IP LIO* compatibility.
    Upgrade firmware from SD card or USB sticks*
    Backup and restore configuration via USB sticks
    Automated firmware upgrade notifications via Web-GUI
    Support for multiple languages: English, Spanish, Portuguese and French*
    Backward compatible with all Tieline IP codecs


    User name and password protection of codec and Toolbox HTML5 Web-GUI
    Support for SSL Security Certificate installation
    SIP allow lists and deny lists allow filtering of SIP URIs and User Agents.
    Configuration of non-standard ports
    Firewall settings to enable or disable a range of firewall-related network services, or limit ping to only work in a local subnet
    Implementation of CSRF protection (Cross-Site Request Forgery)
    Cloud Codec Controller supports admin and user level access to codecs with password protection