VOIP Colocation
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Cisco
AS5300/Voice Gateway works well in a stacked
configuration to create a single virtual dial pool for
large-scale service provider applications. The
award-winning AccessPath-VS3 is a preconfigured,
pretested stacked solution for VoIP providing the
industry's broadest family of compatible products.
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VOIP
Colocation
Special Offer:
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Cisco
AS5300 |
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| Major enterprises and service
providers have built worldwide toll-quality VoIP
server colocation networks.
Cisco voice technology maintains carrier-quality
communications among the most intense and adverse network
conditions, including packet delay and packet loss. Both
packet loss and packet delay can have a significant adverse
impact on speech quality. The
high end voice coprocessor design of Cisco voice gateways
minimizes delay and packet loss during the voice encoding
and packetization process. Cisco QoS features, including IP
Precedence, Resource Reservation Protocol (RSVP), Weighted
Fair Queuing (WFQ), Weighted Random Early Detection (WRED),
and Multiclass Multilink PPP (MP) fragmentation and
interleaving, implemented on both the voice gateways and
backbone routing infrastructure, can provide a low-latency,
high-reliability path for sensitive voice traffic through
today's networks. In Mier Communications tests, the Cisco
AS5300/Voice Gateway exhibited the lowest latency of any
VoIP product—using industry-standard H.323 and G.729 CODEC.
The Cisco AS5300/Voice Gateway VoIP solution typical latency
clocked in their lab was only 70 milliseconds. |
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| A broadband voice gateway is a device that allows you to
make telephone calls over a high-speed Internet connection
rather than through a regular telephone outlet without
having to go through your computer. The device or gateway,
which is about the size of a video cartridge, is plugged
into your broadband DSL or cable modem. You then attach an
ordinary cord or cordless telephone to the gateway and make
calls just as you would with the plain old telephone system
(POTS). On the Internet, your call is carried in packets
using Voice over Internet Protocol (VoIP). Because the
gateway bypasses your computer, you can surf the Web at the
same time that you or someone else uses your Internet
connection for a phone call. No software is required. The
gateway can be set up with or without a network router. You
can add additional phone lines from the gateway with an
RJ-11 splitter. The major benefit of broadband voice service
is saving money on long-distance charges, while enjoying
better sound quality than afforded by a regular dial-up
connection. However, there are other considerations that
make it impractical as the sole telephone service in a
household: unlike regular telephone service, if your
Internet service is down, your phone will be down along with
it, and a power outage means your phone is out as well. |
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