baresip initialization code

gistfile1.m

int err;
/* Initialise System library */
err = libre_init();

/* Initialise dynamic modules */
mod_init();

err = net_init();  // do not prefer IP v6 
if (err) {
    NSLog(@"network init failed (%@)\n", strerror(err));
    //return err;
}

err = ua_init([@"MyApp 1.0" cStringUsingEncoding:NSASCIIStringEncoding],true,
              true, true, true); 
if (err)
{
    NSLog(@"User Agents init failed (%s)\n", strerror(err));
}

NSMutableString *addr = [NSMutableString string];
[addr appendFormat:@"<sip:%@:%@@%@;transport=%@>;regint=%d", //;sipnat=outbound",
 @"adil.soomro",  @"password", @"iptel.org:5060",
 @"tcp",
 60];
[addr appendFormat:@";auth_user=%@", @"adil.soomro"];

//[addr appendFormat:@";medianat=stun;stunserver=stun:%@", @""];

NSLog(@"UserString %@", addr);
struct pl pl_addr;
pl_set_str(&pl_addr, [addr cStringUsingEncoding:NSASCIIStringEncoding]);
if (ua_add(&pl_addr) == 0)
{
    NSLog(@"Starting User");
}
else{
    NSLog(@"Error Starting User");
}
/* Start all User-Agents */
err = ua_start_all();
if (err)
NSLog(@"User Agents start failed (%s) Error Code = %d\n", strerror(err), err);