--- ztcfg.c	2007-11-02 18:16:57.000000000 -0400
+++ ../zaptel-1.2.21/ztcfg.c	2007-09-15 16:36:58.000000000 -0400
@@ -1281,16 +1281,6 @@
 							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) {