Callserve Communications United Kingdom
General office
Callserve Communications
2 Harbour Exchange Square
London
,E14 9GE
United Kingdom
Phone: 2075177100
Site: http://www.callserve.com
Contact Person
Dowana Walshaw / Carrier Manager
Phone: 0207 517 7167
Callserve Communications
2 Harbour Exchange Square
London
,E14 9GE
United Kingdom
Phone: 2075177100
Site: http://www.callserve.com
Contact Person
Dowana Walshaw / Carrier Manager
Phone: 0207 517 7167
- Internet Telephony Service Provider
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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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