Enterprise VoIP
IP Phones & Systems
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IP Telephony FAQ's:
What paths have the lowest
latency?
A fiber optic path half-way around the world makes a signal travel
only 24,902 miles for a round trip. That same trip via geosynchronous
satellite is over 4x that. The difference is more significant
between closer points on the Earth. A 1,000 mile link using a
point to point fiber optic link is still 46,000 or so miles up
and down to the satellite.
Which CODECs support FAX?
G.711, the most universally installed CODEC, supports FAX because
it has no compression of the signal. A newer T.38 CODEC was designed
to transport FAX by coding the picture signal for transmission
as an image file, not digitizing the analog FAX machine signal.
T./38 is not as commonly available as G.711.
