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August 25, 2019
8:14 PM
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DS3 Equivalent to 28 T1 Lines
DS3 service at a signaling rate of 44.736 Mbps is the equivalent of 28 T1 lines at their signaling rate of 1.544 Mbps. Because of the strict synchronization of TDM services, 28 T1 lines may be multiplexed into a single DS3 service.

When to Use Pseudowires
A pseudowire is a virtual "circuit" that emulates a traditional digital telecom service but on a packet switched network. MPLS networks are especially suitable for pseudowires. By using a pseudowire circuit, you can get the point to point connectivity you desire without having to re-engineer your facilities to accommodate a different protocol network.

DS3 for Call Center Telephony
DS3 voice service can support up to 672 simultaneous telephone conversations without blocking. If your call center or large corporate PBX system requires this number of outside lines, DS3 is likely far more cost effective than ordering the equivalent 28 T1 lines.

DS3 as Ethernet Transport
DS3 bandwidth at 45 Mbps can easily transport 10 Mbps Ethernet over SONET or T3 line, even with the additional overhead needed to convert from packet to TDM back to packet protocol. For Fast Ethernet transport, an OC3 service at 155 Mbps would be required.

The Importance of DS0
DS0 and DS3 are part of the same set of digital signal standards. DS0 is 64 Kbps, the bandwidth required to support one telephone call of 8 bits at a sampling rate of 8 Kbps. DS3 has a speed of 44,736 Kbps, commonly referred to as 45 Mbps. This speed level was chosen so that 672 DS0s could be multiplexed into one DS3. One DS3 can also multiplex 28 DS1 services. DS1 is the signal level transmitted on a T1 line.


Carrier Ethernet & DS3 Bandwidth
Find legacy 45 Mbps DS3 bandwidth over fiber / coaxial copper, DOCSIS 3.1 Business Cable Broadband and 50 - 10,000 Mbps Carrier Ethernet over Fiber solutions, including Managed SDN Software Defined Networking and SD-WAN, for commercial and organizational business applications. Cloud services & colocation bandwidth are also available. Find out in seconds what network services and pricing are available now for your location anywhere in the U.S. Simply use this handy form...

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