IP Network

•Recommend – private IP network between sites

•Can be any reliable IP connection, including leased line, line of site laser / wireless connection and satellite

•QOS should be implemented to ensure that VoIP packets pass through the network in a consistent and timely manner and are not discarded by congested routers

•Consider VPN between sites as this:

-removes any issues with firewalls / NAT

-encrypts audio and management data

•For inter-site operation the Internet can be used, but contention and available bandwidth must be considered

•Recommend – a VPN should be used from the home user to the company LAN. This is important for securing data access to the company site, and for VoIP it gets around NAT traversal issues

User experience

•Exactly the same operation as if their analog phone was physically connected directly to the PBX

-pick the handset up and you dial tone from the PBX (this may be stuttered by the PBX to indicate voice mail)

-hookflash / recall will allow the phone to access advanced features of the PBX (like call transfer, follow me, camp-on-busy, conferencing)

•There might be a slightly longer delay needed between clearing down from 1 call to getting dial tone ready to make the next call.

USPs

•Prolongs the life of existing legacy equipment

•Allows users to be situated where ever most convenient, not limited by the location of the PBX.

•PBX features are available to users (through use of hook-flash and DTMF commands)

•No user re-training

•Simple self-contained solution

Considerations

•Need to ensure that the PBX has analog phone connectivity – proprietary digital phones cannot be extended in this manner

•Emergency calls must be considered; it may be necessary to have a special “Emergency” phone

Future extensions

•Installation of Proxy / gatekeeper to provide IP-PBX functionality (FXS gateways and IP phones can be re-used in this new configuration).

3rd party product choices

•For NAT traversal between sites, consider SNOM NAT filter, SIParator or Alcatel T610

•For VPN at home site consider Alcatel T610

Version 2.1

16 March 2006

Page 13 of 33

Vega Gateway Scenarios.

©2005-2006 VegaStream Ltd.

 

Examples are given in best faith – ensure that you check the capabilities of systems before

 

 

deploying them, especially the functionality of devices not designed and delivered by VegaStream.

 

VoIPon Solutions www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0) 1245 600560

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Polycom Vega Gateway appendix IP Network
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Vega Gateway specifications

Polycom Vega Gateway serves as a crucial component in modern telecommunications, bridging the gap between traditional telephony systems and Voice over IP (VoIP) networks. As organizations transition to digital communication solutions, the Vega Gateway plays a vital role in ensuring compatibility and enhancing connectivity.

One of the primary features of the Polycom Vega Gateway is its ability to facilitate seamless interoperability between different communication protocols. It supports a range of signaling protocols, including SIP (Session Initiation Protocol), H.323, and analog interfaces, making it easy to connect legacy phone systems to modern VoIP setups. This flexibility allows businesses to gradually upgrade their telecommunications infrastructure without the need for costly complete system overhauls.

The Vega Gateway is equipped with advanced transcoding capabilities, which enable the conversion of audio streams between various formats. This is especially beneficial in multi-vendor environments where different systems may use incompatible codecs. Its ability to transcode ensures high-quality voice communication regardless of the underlying technology, thus maintaining clarity and reducing latency.

In terms of deployment, the Polycom Vega Gateway can be implemented as both a hardware appliance and a virtualized solution, providing businesses with deployment flexibility based on their IT environment. This adaptability is crucial for organizations looking to optimize their resources and scale their telephony solutions as needed.

Security is another key characteristic of the Vega Gateway. It incorporates robust encryption protocols, such as SRTP (Secure Real-time Transport Protocol), to safeguard voice communications against potential threats. Additionally, the gateway features firewall traversal capabilities, making it suitable for deployment in various network environments without compromising on security.

The gateway is also designed with ease of management in mind. Administrators can configure and monitor the device through a web-based interface or command line, ensuring that managing the system remains straightforward even for complex setups. Logging and reporting functionalities further enhance administrative oversight, allowing organizations to analyze their VoIP usage and optimize resource allocation.

Overall, the Polycom Vega Gateway is a comprehensive solution that addresses the complexities of integrating modern VoIP technology with legacy systems. With its robust feature set, diverse technological support, and commitment to security and manageability, the Vega Gateway stands out as an essential tool for organizations looking to enhance their communication strategies in an ever-evolving digital landscape.
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