Hi Ram,
apparently you are not sending enough information to radius for
accounting. Starting 1.2.0 you need to add extra attributes since
basic info doesn't anymore contain the necessary fields to build a
cdr.
You should have something similar:
modparam("acc", "radius_extra", "
Called-Station-Id=$tu;
Calling-Station-Id=$fu;
Canonical-URI=$tu;
User-Name=$au;
Sip-User-Realm=$ar;
Source-IP=$si;
Source-Port=$sp;
From-Header=$hdr(from);
User-Agent=$hdr(user-agent);
Contact=$hdr(contact);
Event=$hdr(event)")
Cheers,
DanB