T1 lines provide voice and data transmission over high speed lines that is more reliable and faster than DSL connections. There are five different types of T1 lines, including:Integrated T1 LinesIntegrated T1 lines allow businesses to send voice and data over just one line. To accomplish this, the T1 provider assigns a certain number of channels on the line to voice service, while other channels are designated for internet access and internal data transmission. This channel-designation structure means that voice traffic does not affect internet traffic or vice versa, since the two processes take place on different channels.Fractional T1 Service Fractional T1 lines are typically a good option for small businesses with fewer employees and smaller offices. In a fractional T1 arrangement, a business may use a portion or a fraction of the channels available. In this way, companies can save money by sharing at T1 line with other businesses. This kind of arrangement is ideal for companies who need only a few channels but don’t want to sacrifice speed, support, and security. Businesses using only a few T1 channels will still experience the same speed and reliability as those who are utilizing all 24 channels-but at a fraction of the price.Private T1 Lines Private T1 lines are often used for point to point connections between offices. These are secure and dedicated lines which can be used to construct a VPN, in which employees can access company data without having to worry that the data packets will travel over the public internet.Voice T1 Lines Typically, large companies who need large numbers of phone lines benefit the most from voice T1 service. Voice T1 lines are also idea for call centers and telemarketing agencies because they can handle unlimited phone numbers on just one line. A TDM voice T1 line can handle up to 24 voice connections at any given time. However, a data T1 line using VoIP has a much higher call capacity and can handle approximate 50 calls at a time. Dynamic T1 A dynamic T1 integrates voice and data service just like an integrated T1, except that a dynamic T1 line has the ability to dynamically adjust bandwidth depending on what the users are doing. For example, if an employee makes a phone call, a dynamic T1 line will allocate a certain amount of bandwidth for the call. If the call is a conference call, it will allocate a bit more bandwidth to accommodate the extra connections. As soon as the call is terminated, that bandwidth is reallocated to data transmission.
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