External/Internal Transfer
The external call transfer – is the call transfer to a telephone line other than the company’s telephone line. The internal call transfer – the transfer of an incoming call to another addressee registered on the same telephone line.
Aastra 6753i is a classic SIP terminal, ensuring convenient work with the high flow of incoming calls in a professional manner.
Sinos Technology (HK) Co.,
Provide wholesale international callback service in China for voip service providers and call shops. We offer competitive price and billing system to our wholeseller. We are using SS7 PSTN line and no connection fee to customers.
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