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).
Polycom SoundStation Duo is a versatile conference phone that works with both analog and IP- phone lines. This makes it a unique device - in fact, two phones in one! With this conference phone you will not need to figure out what type of line your colleagues or partners use. Polycom SoundStation Duo provides full communication through public telephone lines and IP-telephony lines.
i phone corporation Bd LTD
i phone mobile and pc dialer is based on itel software .i phone is running sucessfully in saudi,katar,kuit,iraq and all non block area.i phone pc dialer and device is running sucessfully in UAE,KSA,QATAR,KUIT,IRAQ and every part of the world sucessfully.
Read moreTop 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