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).
The service allows the user defining the criteria, by which the signal of a certain incoming calls will sound different from the standard signal of the telephone call.
Citel : The VoIP Migration Company
Citel’s Portico TVA enables enterprises to connect existing voice infrastructure to a new VoIP platform, saving up to 70% over other VoIP migration alternatives.Citel’s products help eliminate common objections.
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