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).
On April 10, 2012 the company Yealink, a leading manufacturer of IP-phones and VoIP communication systems, has announced the official start of sales of the new IP videophone Yealink VP530.
Castlingvoip
Offering India ,BD, Pak for aggressive rates
Great rates for INDIA,PAK,BD, INDIA CC
CastlingVOIP is a brand of Castling IT Solutions Private Limited based in UK. Castling IT has been providing services to customers around the world since 2006 with
Top countries:
United States 1294
India 440 United Kingdom 425
Canada 348
Bangladesh 338
China 142
Pakistan 134
Australia 133
Spain 123
Russia 114View all countries