diff -crB dahdi.org/tools/zonedata.c dahdi-linux-complete-2.6.1+2.6.1/tools/zonedata.c
*** dahdi-linux-complete-2.6.1+2.6.1.org/tools/zonedata.c	Tue May 24 17:14:32 2011
--- dahdi-linux-complete-2.6.1+2.6.1/tools/zonedata.c	Thu May 31 18:29:34 2012
***************
*** 1050,1054 ****
--- 1050,1074 ----
  		.mfr1_level = -10,
  		.mfr2_level = -8,
  	},
+ 	{
+ 		.zone = 46,
+ 		.country = "zz",
+ 		.description = "Silence (no sounds) zone",
+ 		.ringcadence = { 0, 0 },
+ 		.tones = {
+ 			{ DAHDI_TONE_DIALTONE, "0" },
+ 			{ DAHDI_TONE_BUSY, "0" },
+ 			{ DAHDI_TONE_RINGTONE, "0" },
+ 			{ DAHDI_TONE_CONGESTION, "0" },
+ 			{ DAHDI_TONE_CALLWAIT, "0" },
+ 			{ DAHDI_TONE_RECORDTONE, "0" },
+ 			{ DAHDI_TONE_INFO, "0" },
+ 			{ DAHDI_TONE_STUTTER, "0" },
+ 		},
+ 		.dtmf_high_level = -10,
+ 		.dtmf_low_level = -10,
+ 		.mfr1_level = -10,
+ 		.mfr2_level = -8,
+ 	},
  	{ .zone = -1 }
  };