44UK Free UK Numbers United Kingdom
- International VoIP Wholesale Provider
- Internet Telephony Service Provider
- Voip Termination ISP
- Fax To Fax
- PC to Phone
- Phone To PC
- Phone To Phone
- Termination
- Voice and Video Conferencing
- Cisco Systems
- Quintum
- another
Some telephones, depending on the brand and model, have the intercom function, which allows to begin communication by sending the signal. When the signal comes, the telephone set rings a signal different from the standard ring tone call. After that the telephone temporarily switches off from the telephone line and works as an intercom.
R&R Telecom, Inc
R&R Telecom offers carrier-grade switch partition solutions for wholesale resellers since 2003. R&R switch partition service leverages Sonus Networks platform and provides powerful yet intuitive interface to control switch operations.
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