[SR-Users] DIAMETER (server & avp helper)

Anyone familiar with: ims_diameter_server cdp cdp_avp I have set Kamailio up to connect with SMSC using Diameter. Initially just want to capture requests in JSON and examine. My trace tells me that I am sending a good message for DIRECT_DEBITING (436). I know the ocs module does not support this - only trying to "take apart" the message. When I get the message, I experience the following: Feb  7 13:07:58 ip-172-31-45-179 /sbin/kamailio[18048]: ERROR: cdp [diameter_avp.c:645]: AAAUngroupAVPS(): hss3g_ungroup_avps: source buffer to short!! Cannot read the whole AVP header! Feb  7 13:07:58 ip-172-31-45-179 /sbin/kamailio[18048]: CRITICAL: cdp [diameter_avp.c:702]: AAAUngroupAVPS(): AVP:<> I suspect this is due to vendor, but not experienced here. The docs seem to suggest the 3gpp is supported, and the diameter xml is set for 0 & 10415? Steve