Nulltel Latvia
- International VoIP Wholesale Provider
- Internet Telephony Service Provider
- Voip Termination ISP
- H.323 VoIP Gateway
- PC to Phone
- Phone To PC
- Phone To Phone
- SIP VoIP Gateway
- Termination
- Web Call
- Web To Phone
- Cisco Systems
- Custom Open Source Billing Solution
- IP Phone
The function is available in some telephone networks and it allows
receiving the other call at the moment of the actual conversation by the method
of setting the active call in the waiting mode or cancellation. This will let
not to miss an important call and to agree upon time when it will be possible
to call back.
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