I have registered 7942 as sccp and 7281 as sip on CME, cme version is 10.5.
Both phones are registered.
I call from 7281 to 7942 and voice testing is all okay.
But when i try to call from 7942 to 7821, 7942 display ringout but 7821 doesnt rings out.
What could be the possible reason
