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callback
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| Supply Ability: |
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| Specifications |
traffic |
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Call Back
Call Back is emerges in recent years, when the way put into practice , after the user first dialed a number and hung up , the system would call the telephone number which he established in advance (A), then the user answered and heard the voice prompt to input his wanted number (B) . When it finished , the system would call the B number which he input, if this number is answered, then A and B might talk over the telephone .
Call Back theory and flow
Call back server is UA with special function from the SIP standard package angle .The chat following above is a typical Call Back call flow :
Instruction:
&©|61548; Mobile phone A (left side) call the callback access number .
&©|61548; Call transmits to the system by the router .
&©|61548; As for the Call Back module registered on our system by some number status , the call by system is delivered to Call Back module , the Call Back module inquired whether the calling did use the Call Back service, if has used, further ***ermined that which number this calling number correspondence , the inquires need to recall to A .
Attention : at this moment , the calling already might hang up . Only activated the Call Back module , it could be have done .
&©|61548; System module obtained the number A by calling inquiring ,it initiated calls A conversation to system .
&©|61548; System discovered that A is a PSTN number, it gives this call to the PSTN network .
&©|61548; The PSTN network calls A .
&©|61548; When A answered , with the IVR system guidance dialed the wanted number B by DTMF input .
&©|61548; Call Back will initiate to call B after receiving the DTMF input from A .
&©|61548; System discovered that B is a PSTN number, it delivers the call the PSTN network .
PSTN network calls B .
&©|61548; B answering , might have a normal call with A through SIPCBS .
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| Company: |
PacificIDD Ltd.,
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| Contact: |
Ms. chen christine |
| Address: |
luohu district |
| Postcode: |
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| Tel: |
86-755-82389711 |
| Fax: |
86-755-82389773-6 |
| E-mail: |
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