Problem turning Chat into voice call from WebLiveChat

[RadyAir]

We have set up the WebLiveChat and are using the chat portion with no problems.
but when we try to initiate a phone call from the chat session, it terminates with
"Rejected! Line is 'Busy' because number of simultaneous calls per line Line:90000<<+90000 is limited by Administrator "

any idea why?

here are the logs - in reverse order, ending at the top

09/23/2020 4:08:46 PM - [CM503020]: Call(C:86): Normal call termination. Call originator: Line:90000<<+90000. Reason: Busy Everywhere

09/23/2020 4:08:46 PM - [CM503019]: Call(C:86): Rejected! Line is 'Busy' because number of simultaneous calls per line Line:90000<<+90000 is limited by Administrator

09/23/2020 4:08:46 PM - Call(C:86): is rejected. Incoming INVITE: Invite-IN Recv Req INVITE from 127.0.0.1:5063 tid=52b2f85d100afe02 Call-ID=:

09/23/2020 4:08:46 PM - Call(C:86): is rejected. Incoming INVITE: Invite-IN Recv Req INVITE from 127.0.0.1:5063 tid=52b2f85d100afe02 Call-ID=PiVWgVdLFlI3ruaPKLbP2Q..:
INVITE sip:[email protected]:5060 SIP/2.0
Via: SIP/2.0/UDP 127.0.0.1:5063;branch=z9hG4bK-524287-1---52b2f85d100afe02;rport=5063
Max-Forwards: 70
Contact: <sip:[email protected]:5063;rinstance=9abf933e38315664>
To: <sip:[email protected]:5060>
From: "Name <[email protected]>"<sip:[email protected]>;tag=fbd7bf05
Call-ID: PiVWgVdLFlI3ruaPKLbP2Q..
CSeq: 2 INVITE
Subject:
Allow: INVITE, ACK, CANCEL, OPTIONS, BYE, REGISTER, SUBSCRIBE, NOTIFY, REFER, INFO, MESSAGE
Content-Type: application/sdp Proxy-Authorization: Digest username="90000",realm="3CXPhoneSystem",nonce="414d53595f6bc76e90:08a4b25214e5786471573fb147e914a6",uri="sip:[email protected]:5060",response="3cacfc8275408aad4b1a190a5751972a",algorithm=MD5
Supported: replaces
User-Agent: 3CX WebRTC proxy

09/23/2020 4:08:46 PM - Line limit check: inbound calls are disabled for line Lc:90000(@WebMeeting bridge[<sip:[email protected]:5063/UDP>])

09/23/2020 4:08:46 PM - [CM503012]: Inbound office hours rule (unnamed) for 90000 forwards to DN:

09/23/2020 4:08:46 PM - [Flow] Looking for inbound target: called=109; caller="Jdj <[email protected]>" <sip:90000@:0>

09/23/2020 4:08:46 PM - [CM101011]: There's incoming call on the line '' marked as outbound-only!Lc:90000(@WebMeeting bridge[<sip:[email protected]:5063/UDP>])