TVIIceOptions *iceOptions = [TVIIceOptions optionsWithBlock:^(TVIIceOptionsBuilder * _Nonnull builder) {
     builder.transportPolicy = TVIIceTransportPolicyRelay;
     builder.servers = @[[[TVIIceServer alloc] initWithURL:@"stun:foo.bar.address?transport=udp"],
                         [[TVIIceServer alloc] initWithURL:@"turn:foo.bar.address:3478?transport=udp"
                                                  username:@"fake"
                                                  password:@"pass"]];
 }];

 TVIConnectOptions *options = [TVIConnectOptions optionsWithBlock:^(TVIConnectOptionsBuilder * _Nonnull builder) {
     builder.name = roomName;
     builder.iceOptions = iceOptions;
	builder.localMedia = [[TVILocalMedia alloc] init];
}];