Hello I can compile chan_ss7 1.3 cleanly against Asterisk 1.4.29, however, get the following errors when compiling against Asterisk 1.6.0.21: l4isup.c: In function ?ss7_write?: l4isup.c:2400: error: request for member ?ptr? in something not a structure or union l4isup.c: In function ?setup_cic?: l4isup.c:4595: warning: implicit declaration of function ?ast_dsp_set_digitmode? make: *** [l4isup.o] Error 1 I get the exact same errors if I try compile chan_ss7 1.2.1 rather than 1.3. Can anyone please advise what I'm doing wrong or if this is a compatibility issue between chan_ss7 and Asterisk 1.6.0.21. Thanks Greg