4 Carriers Sp. z o.o. Poland
Termination, Call Routing VoIP Solutions, SIP, H.323 Softswitch & CPE, H.323 VoIP Gateway, H.323 Wireless/ GSM VoIP Solutions,
General office
4 Carriers Sp. z o.o.
Aleje Jerozolimskie 42/67
Warsaw
Mazowieckie ,00-024
Poland
Phone: +48 397 77 77
Phone: +48223977777
Contact Person
Piotr Slowinski
Phone: +48223977777
Phone: +48608303030
4 Carriers Sp. z o.o.
Aleje Jerozolimskie 42/67
Warsaw
Mazowieckie ,00-024
Poland
Phone: +48 397 77 77
Phone: +48223977777
Contact Person
Piotr Slowinski
Phone: +48223977777
Phone: +48608303030
- Wholesale VoIP Carrier
- Termination
- Cisco Systems
- another
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).
VOIP PI CO., LTD.
VOIP PI Co., Limited. is a one of the leading asterisk telephony card manufacturer in china, with passion in supplying open souce hardware.
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