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.
NASR Technologies Co.
NTC is dedicated to providing the best in affordable Internet Telephony technology for enterprises.From the wide variety of VOIP solutions available today, the one you select depends on the size of your business, the level of networking expertise availab
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