12,24,30,48?
24
up to 670 (voice). If its t1, then only 28.
ISDN VS T1 Both are Digital, T1 is 24 Channels ISDN is 2. Each Channel is 64K ISDN = 2 Voice or 128Kbps T1 = 23 Voice Channels or 1.5Mbps www.intelletrace.com
fractional T1
Equivalent of T1 in European telecom PDH is E1. which has 32 channels and aggregate rate of 2.048Mbps. - Neeraj Sharma
544,638,374,283,290,000,000,000,000,000,000. te he!
The RAD T1 access is a physical layer protocol that is used for leased line transmissions. T1 lines can carry twenty four 56 kbps or 64 kbps channels.
In North American a T1 line carries signals at 1.544 Mbps (24 channels at 64Kbps). E1 is the European format for digital transmission. E1 carries signals at 2 Mbps (32 channels at 64Kbps, with 2 channels reserved for signaling and controlling). T1 and E1 lines may be interconnected for international use.
A T1 line can carry 24 digitized voice channels, or it can carry data at a rate of 1.544 megabits per second. Providers that offer T1 service include T1 Shopper, Century Link, and Earth Link Business.
Both are Digital An isdn is 128Kbps and has two "B" channels and 1 "D" channel. A T1 is 1.5 Mbps and has either 24 channels for Data or 23 "B" channels and 1 "D" channel when used for Voice Typicaly called a PRI when used for Voice.
That's a T1.
Both T1 and T3 are standard digital telephone carriers. They are designed to multiplex voice channels. T1 has a data rate of 1.544 Mbps and T3 has a data rate of 44.736 Mbps. So the answer is t3.