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).
A modern voice communication SIP protocol is widely used to make calls in the Internet. However, the final subscriber is mostly interested not in the very SIP standard but in the SIP telephony conception based on it.
One one hand, all traditional conveniences for making telephone calls, compatibility with the international subscription base and the procedure of dialing numbers are kept.
Surfcreek Communication, Inc.
Surfcreek Communications is a Pittsburgh, Pennsylvania based Wholesale and Retail VOIP Carrier. Surfcreek has interconnection agreements with more than 150 carriers worldwide. We operate switches in POP's in New York, Los Angeles and London. Our goals are
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