2 android apps, one to send dtmf from sip header and the other to dial and respond to dtmf
$1500-3000 USD
Paid on delivery
I have posted this project before and many bid without knowing what they are bidding for. If you are interested:
PLEASE WRITE A FEW LINES OF YOUR UNDERSTANDING OF WHAT THE APPS DOES.
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We will have 2 android phones
They will be connected by a (crossover) 3.5 mm cable.
On phone 2 you will create an app that will listen to headset mic for a dial command followed by the numbers to be dialed.
This app will listen for a voice dial or dtmf dial from the headset jack and dial out the number it hears.
Examples of response
When a dial is received, issue a tone to acknowledge (*1).
when ringing begins, issue a tone (*2) .
if busy/congestion/not available (*3),
when call has been answered *4,
when call gets hung up (##),
(let me know of other possible codes that exist)
On phone 1
You will create a app which accepts SIP calls and generates dtmf or voice dial commands based on what comes in the sip header.
the sip app will register to a sip sever who will send it numbers to be dialed in the header
When the sip server sends a call, the sip app will issue dial command via the headphone speaker. (to phone 2)
if it hears a acknowledgement that the dial was received, wait
if no acknowledgement in x seconds (a variable default 20), issue a sip cause code 503 to sip client
If busy/congestion/unavailable etc issue 503
if ringing received issue sip 183
If busy/congestion/unavailable etc after ringing issue 503
If answer signaled is received , issue a success signal on sip side, I believe it is sip 200
If a hangup signal is received, issue a hangup on sip side, i believe sip 487
Sip client on phone 1 will only register to sip server when it detects that headset jack is being used.
If you can also make asterisk work as phone 1 (using chan_alsa) Please mention.
Project ID: #17845355
About the project
13 freelancers are bidding on average $2117 for this job
Hello, I have build a similar project in my past experience so I have experience in your project, I am a full stacking developer, I have worked many Application, I will provide you initial features which you require More
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