It's impossible. Can't be done in 5 weeks. Somebody somewhere didn't know what they were signing up for. To begin with, you don't do a softphone with Asterisk, you connect a softphone with Asterisk. Maybe your assignment is to connect a softphone using Asterisk? Which will be immensely easier :)... In any case, should you want to "write" a softphone then your best bet is download the pjsip library from pjsip.org... Source: about 3 years ago
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