Tivi Latvia
- SIP Billing
- Voip consulting
- Voip Termination ISP
- PC to Phone
- SIP VoIP Gateway
- Cisco Systems
- Quintum
- Billing system of own development
Call waiting with “Caller ID” uses a special signal in
order to warn you about an incoming call, during another call there are shown the
name and number of the calling subscriber on the display. The function also
allows switching between two calls.
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