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P-2000W_V2 User’s Guide
Outbound Proxy
Some VoIP service providers use a SIP outbound server to handle voice calls. This allows the Prestige to work from behind any type of NAT router and eliminates the need for STUN or a SIP ALG (Application Layer Gateway).
Voice Coding
The Prestige can use the following voice codecs (coder/decoders).
•G.711
•G.729
Voice Activity Detection/Silence Suppression
Voice Activity Detection (VAD) reduces the bandwidth that a call uses by not transmitting when you are not speaking. This also helps increase the battery lifetime.
Comfort Noise Generation
The Prestige generates background noise to fill moments of silence when the other device in a call stops transmitting because the other party is not speaking (as total silence could easily be mistaken for a lost connection).
PPPoE
PPPoE
Firmware Upgrades
Use the web configurator to upload updated firmware to your Prestige.
1.2 Applications
Here are some examples of how you can use your Prestige.
1.2.1 Place a Call via “SIP Proxy Server” (SIP Call Server)
When you have a (IEEE 802.11b) wireless connection to the Internet, you can use the Prestige to make and receive VoIP telephone calls through an Internet Telephony Service Provider’s (ITSP) call server.
24 | Chapter 1 Getting To Know Your Prestige |
VoIPon www.voipon.co.uk | sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 600030 |