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).
SipTar CDR CallShop billing software ensures control of up to 16 cabins simultaneously, creation of invoices in real time and browsing the history of calls made by customers from each phone cabin.