Hello,
Good morning
I read your requirement , You need an desktop application to send and receive mms and talk by using c# and Twilio.
I have done same kind of projects by using Twilio and c# , i developed in both web and desktop environment.
The application developed by me using twilio has following functionalities:
1) Manage Account credential such as Auth SID and Auth Token
2) Manage your purchase Twilio numbers
3) Contact Number : Manage receiver contact numbers by group , you can import contact to specific group so when you send sms/mms you just need to select particular group. you can also mange groups as well .
4) Receive Message : if your receiver reply you on that twilio number than you can see that message in this portal
5) Call Forwarding : In this you just need to set your call forwarding number so when anyone call on your twilio number that call will forwarded to inserted number.
I am not able attach screenshots or document, please give me your mail id so i can send you screenshots and document of applications developed by me.
Bid price is negotiable based on our discussion and after I get your complete requirement.
Thanks
Best Regards,
Vidhyut Sorathiya