Index: ztcfg.c
===================================================================
--- ztcfg.c	(revision 1376)
+++ ztcfg.c	(working copy)
@@ -1394,6 +1394,16 @@
 						current_state.channo = cc[x].chan | ZT_GET_PARAMS_RETURN_MASTER;
 						if (ioctl(fd, ZT_GET_PARAMS, &current_state))
 							needupdate = 1;
-						else if (current_state.chanpos == 16 &&
-							(cc[x].sigtype & ZT_SIG_CLEAR) && 
-							!(lc[current_state.spanno - 1].lineconfig &
-							(ZT_CONFIG_D4|ZT_CONFIG_ESF|ZT_CONFIG_B8ZS|ZT_CONFIG_CCS))) {
-								fprintf(stderr, 
-									"CAS signalling on span %u conflicts with %s on channel %u.\n",
-									current_state.spanno, 
-									sigtype_to_str(cc[x].sigtype), x);
-								exit(1);
-						}
 					}
 					
 					if (!needupdate) {