Proxy
For the Deutsche Telekom CompanyFlex profile, entering a proxy server is required because the provider routes all SIP signaling through specific proxy addresses. This proxy in CompanyFlex is called Primary Outbound Proxy. This ensures proper registration, authentication, and call routing.
In the generic provider profile, a proxy is optional since it can be used with providers that allow direct SIP connections without a fixed proxy.
The Proxy isn't a fixed hostname. Instead, it is dynamically generated based on your 12-digit CompanyFlex ID.
The Primary Outbound Proxy address is found in the Deutsche Telekom portal.
Example (replace with your actual ID):
Primary Outbound Proxy: sip:551134276543.primary.companyflex.de
(where 551134276543 is your specific CompanyFlex ID)
The sip: is automatically inserted.
Click .
