A line ring on 2 phone

[StevieRay8String1969]

Have a line ring on 2 phones. i have line extension 5760 and another 5761. When someone call extension 5770 i need it to
ring onb 5760 and 61. I was told to set supervision? Not sure what that means.
Thanks

[vad]

PBX type - OXO or OXE?

[StevieRay8String1969]

Didnt realize i got a response. Its a OXO

[haroun]

5770 is a real extension or only a directory number

if the first case, may set supervision option is your target if available in Oxo
otherwise, the second option is 5770 should be a hunt group calling number with 5760&5760 extension as members in that group