Enterprise VoIP
NEC Phones and Telephone Systems
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office telephone systems and PBX phone system hardware and service,
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Phones and Telephone Systems Search Engine or browse the
complete selection of VoIP phone handsets, IP PBX systems, voice
gateways, adaptors, and other computer networking equipment from
NEC and other telecommunications vendors. We offer business grade
voice over IP telephone solutions, including ISDN PRI and SIP
Trunking voice and data bandwidth savings for network convergence.
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IP Telephony FAQ's:
SONET is fiber with telephony
heritage
SONET was designed to carry telephone conversations, so it handles
the TDM (time division multiplexing ) digital voice channels from
PBX and telephone carrier switches easily. Because it is synchronized
like the T-carriers, you can add or remove channels at will with
an add-drop multiplexer. This makes it easy to interconnect a
group of locations in a regional or even nationwide network.
What is the advantage of
the G.729 CODEC?
G.729 is a CODEC that compress the digitized voice signal to transmit
phone calls using much lower bandwidth than the standard G.711
CODEC. The tradeoff is a reduction in voice quality compared to
uncompressed voice, but quite acceptable to many users.
