...

var outCall = session.createCall({
    callee: $("#callee").val(),
    ...
    stripCodecs: "SILK,G722"
    ...
});

outCall.call();

Additional SDP parameters passing in INVITE request and 200 OK response

When call is made with JavaScript API, an additional parameters can be passed to control bandwith via SDP, for example

var sdpAttributes = ["b=AS:3000","b=TIAS:2500000","b=RS:1000","b=RR:3000"];
var outCall = session.createCall({
        sipSDP: sdpAttributes,
        ...
    });

Those parameters will be added to SDP after connection information ("c=IN IP4 <WCS IP>") and before time description ("t=0 0") to INVITE request (for outgoing calls) and 200 OK response (for incoming calls):

v=0
o=Flashphoner 0 1541068898263 IN IP4 192.168.1.5
s=Flashphoner/1.0
c=IN IP4 192.168.1.5
b=AS:3000
b=TIAS:2500000
b=RS:1000
b=RR:3000
t=0 0
m=audio

Known issues

1. It's impossible to make a SIP call if 'SIP Login' and 'SIP Authentification name' fields are incorrect

...