Sigma Systems Ltd Ghana
General office
Sigma Systems Ltd
No2 Gaby Avenue, Parakuo
Accra
G/Ag ,KD399
Ghana
Phone: +233 21 408 302
Contact Person
Wisdom Selassie / Project Manager
Phone: +233 21 408 302
Phone: +233 244 560 849
Sigma Systems Ltd
No2 Gaby Avenue, Parakuo
Accra
G/Ag ,KD399
Ghana
Phone: +233 21 408 302
Contact Person
Wisdom Selassie / Project Manager
Phone: +233 21 408 302
Phone: +233 244 560 849
- Internet Telephony Service Provider
- Voip consulting
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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.
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