E1/T1
A European format for digital transmission. E1 supports signals at 2 Mbps (32 channels at 64Kbps, with 2 channels reserved for signaling and controlling), versus the T1, which carries signals at 1.544 Mbps (24 channels at 64Kbps).
An opportunity to use the other connection line if the usual line is engaged.
MasterCall
Inside MasterCall a consumer oriented telecom
Master Call Communications, Inc. was established in January of 1999. At its
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