Joining a Webex Meeting
In Webex you need to call to a SIP URI, for example, username@mycompany.webex.com. In your specific case, "username" and "mycompany" will be unique to your meeting and Webex account.
1. Gateway IP address
The first step is to find out the IP addresses of Webex gateways for calls to this URI via SIP TCP. On Linux/Mac you can use the command:
dig _sip._tcp.mycompany.webex.com SRV Under Windows you can use the nslookup command:
nslookup -type=srv _sip._tcp.mycompany.webex.com
2. Gateway
In the second step, add a SIP gateway. In the IP field enter one of the addresses obtained in step 1. We set the transport to “TCP”. In the "From domain" field enter the address from the URI "mycompany.webex.com".
3. ‘Loop’ user type
Add a user of the ‘Loop’ type and enter “username” in his number. Indicate that it is served on the gateway created in step 2.
Add the users to the conference and call.