many Cisco IP phones share some directory numbers

[Mohamed H. Abdelmotaleb]

i am beginner in voice filed, and i have question if i have ten Cisco IP phones and seven directory numbers , is there ability to put those seven numbers in each phone of ten phones and when i call any number all phones ring togther ? if this feature is found please inform me what is it's name ?

[BradEast1]

Most Cisco phones won't have 7 line keys, but you can assign the same directory number to multiple phones.

Shared Line Appearance - https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cucm/admin/8_6_1/ccmsys/accm-861-cm/a03dn.html#pgfId-1100362

Sounds like you could potentially use Line Group/Hunt List/Hunt Pilot as an alternative.