How
much bandwidth do I need?
Your connection speed (bandwidth) must be
sufficiently high for the type of vocal codec you
are using. Vocal codecs (or just "codec") are the
standard means by which your IP Phone (UA) encodes
your voice and transmits it across the Internet. The
codec that is picked for a particular phone call is
primarily determined by your UA's configured
preferences. Consult your UA's manual to determine
how to change codec preferences
Why does my call sound broken up?
Very often what is sold as a "High Speed" or
"Broadband" connection is not up to the task of
transmitting voice packets in a timely or reliable
manner. Problems such as high latentcy (slow
delivery of packets) or packet loss (actual dropping
of voice data) can be seen from time to time on some
provider's networks. These problems will be heard by
you on your IP phone call long before they are
noticed for other data activities like checking
email or web browsing.
To track down where the problem is coming from, you
can use packet tracing software to reveal network
bottlenecks and get them reported to your ISP. We
recommend a product called "Ping Plotter". You can
download a free trial version at http://www.pingplotter.com
Can I use this service with a Satellite
Internet connection?
Lack of uplink bandwidth. Typically SAT Internet
connections are asymmetrical with their download
bandwidth being much higher than their upload
bandwidth. If your uplink bandwidth is lower than
the bandwidth required by the vocal codec you are
using (see the Knowledge Base article on Codecs),
then you will not be able to use the connection for
voice calls reliably.
What value should I set my Registration
Interval to?
Registration is the event where your IP Phone (UA)
contacts our system and tells it where you can be
reached for incomming calls. The registration
interval is the time (measured in minutes or
seconds) between when your UA re-registers.
Registration is required before you can make PSTN
calls (see the Knowledge Base article on Error 205.)
Our sip proxy forces a 60 minute registration
regardless of the interval specified in your VoIP
adapter.
learn more
BPN
VoIP