With dynamic integrated service, phones get the priority to ensure high quality voice traffic, but when the phones are not in use, the bandwidth is returned to the data side in real time. As an example, with a full dynamic integrated DS1, 1540 k (t1 bandwidth) is assigned to the data side. If one phone is being used, then subtract 64 K (varies) from the 1540 k, if two phones are being used, subtract 128 k, and so on. When the user hangs up the phone that bandwidth is automatically returned to the data side. With dynamic integrated, you will always have 1.54 mbps (megabits per second) when phones are not in use.
Other advantages of channelized DS1 can include; one provider, one easy to read bill and one point of contact for all of the above mentioned services, flexibility in keeping your same phone numbers, much lower costs than if the above applications are purchased individually on separate T1 lines, and the flexibility to evolve as your business grows. Channelized DS1 is commonly confused with dynamic integrated T1, and occasionally confused with fractional t1. In actuality, one channelized DS1 circuit can include the functionality of multiple fractional T1 services, for far less money.
