I have a business case where we need to have calls runing between Innovaphone telephone devices and SNOM telephones. Currently we have a huge installed base with SNOM phones which are communicating directly to each other by using SIP IP dialing (no registrar). To be able to switch to Innovaphone sets, same feature is required on Innovaphone devices. Currently Innovaphone supports phone-phone direct dialing by IP address AND telephone number. Whereas the installed base do not have any telephone number configured.
Goal is to establish phone-phone direct calling between Innovaphone and SNOM phone by using IP address only.