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,

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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

Wholesale VoIP Carrier

Termination

Cisco Systems

another

NetTEL

Crowley Data Poland Sp. z o.o.

Providers in database: 6433

Anonymous Call Rejection

Anonymous call rejection – this is a function that blocks the incoming calls of subscribers with indefinite telephone number.

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Osool Telecom

Osool Telcom Solutions, Inc. strives to make VoIP more mainstream by helping VoIP service providers prepare for the challenges that are just now emerging on the horizon.

Osool helps them do this by enabling them to outsource their complete VoIP back-e