They should not be the same. An inside call (intercom) should be 1 long ring - pause - 1 long ring. An outside call should be 1 short ring, followed by 1 long ring. You can change the way a particular phone rings by choosing 1 of 8 ringing oprions - but that option only helps distinguish that specific phone from other phones. Regardless of the ringing option chosen, the type of ring for inside and outside calls will be similar - except for what I mentioned above.
Tom Daugirdas,
President
STCG, Inc.
stcg.com