Telos Zephyr IP Audio Over IP AAC Codec Internet AES AoIP Transmission Endpoint

A lightly used Audio Over IP codec. Firmware version is 3.3.1r. Screenshots from my testing are provided below. Note that the Directory/Dial page is written in Java and so is not going to run in your normal browser. It would probably just be easier to use the front panel to enter details of called parties and to initiate the connection than to resolve this legacy code issue. (The screenshots of the http Dial interface shown below were obtained using IE11/Java under Windows XP 32bit, which may not be an OS that you still have available). Also these units are intended to be run on a static IP address. Operation through NAT and a firewall may take some networking expertise and experimentation. If you're less than expert in IP networking I would recommend the later Z/IP units (listed separately) as being easier to configure.

Description

The Zephyr/IP makes it possible to use public IP networks and mobile phone data services for high quality, trouble free audio transmission. The Z/IP does this automatically with minimal setup and very little delay. The connection is nearly bulletproof and traverses firewalls and NATs.

Full details may be obtained from the User Manual at
https://www.prostudioconnection.net/1803/Zephyr-IP_Manual.pdf

Agile Connection Technology (ACT), a Telos exclusive, is the foundation for the Z/IP's excellent performance on real-world networks. It delivers reliable audio despite varying network conditions, and without the need for user intervention. The Z/IP dynamically adapts to the network, minimizing the effects of packet loss and jitter.

The Zephyr/IP introduces a new codec based on low delay AAC. Advanced Audio Coding-Enhanced Low Delay (AAC-ELD) combines excellent fidelity at low bitrates, nearly inaudible loss concealment, with very little delay. This produces superior audio for two-way applications over uncontrolled IP networks.

When the network is well-behaved, you will benefit from the lowest possible delay and the highest possible fidelity. Should network conditions become challenging, the Z/IP automatically responds by lowering the bitrate and increasing the buffer length, doing everything possible to ensure audio makes it to your studio reliably.

The Z/IP is Livewire enabled and ready to accept and provide audio to any of your other Livewire devices.

Standard Features

• Codecs include New AAC-ELD (Advanced Audio Coding - Enhanced Low Delay), AAC-HE, MPEG Layer 2, G.711, G.722, Linear PCM.
• New Telos ACT (Agile Connection Technology) provides Dial-By-Name, Group Speed Dial, NAT / Firewall Traversal, IP Address Resolution, Media Relay, Adaptive Bitrate, Dynamic Buffering, Jitter Correction, Effective Packet
  Loss Concealment.
• Audio I/O via AES/EBU*, analog (balanced XLR) and Axia Livewire IP-Audio interface. Additional connections include Headphone Jack, RS-232 Serial, USB.
• Studio-grade 24-bit A-to-D and D-to-A converters.
• Wired Ethernet and Wireless Wi-Fi, EVDO, UMTS connections with approved USB devices.
• 18 kbps to 256 kbps transmission bitrates.
• High-resolution, information-rich interface with context-sensitive on-screen help.
• Full-VGA display screen displays network conditions in an intuitive color-coded graphics format.
• Telos-hosted Z/IP Server enables lookup of, and connection to, other Zephyr/IP users worldwide through firewalls and Network Address Translation (NAT) devices.
• Compatible with Telos Zephyr Xstream.
• Supports Session Initiation Protocol 2.0 (SIP) Direct or via Proxy Server.  Web server for remote configuration and remote control. [See comments above regarding the use of Java]