Sunapemobil Romania
- International VoIP Wholesale Provider
- Internet Telephony Service Provider
- Call Relay VoIP Solutions
- Call Routing VoIP Solutions
- Collaboration
- Partnering for Origination and Termination
- PC to Phone
- Phone To Phone
- SIP VoIP Gateway
- Termination
- Web To Phone
- Audiocodes
- Cisco Systems
- QiiQ
- another
In telecommunications the automatic call-back is a computer telephone function which allows the user by the engaged addressee’s line or in the other case of the subscriber’s inaccessibility indicating the system to save the number of the called subscriber and make the call when the line will be available or when the called number is not engaged.
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