1 files changed, 2 insertions, 2 deletions
diff --git a/zaptel.c b/zaptel.c
index 48909a8..2161869 100755
--- a/zaptel.c
+++ b/zaptel.c
@@ -4975,9 +4975,9 @@ out in the later versions, and is put back now. */
 			   so stupid switches won't consider the channel active
 			*/
 			if (ms->flags & ZT_FLAG_AUDIO) {
-				memset(txb, ZT_LIN2X(0, ms), bytes);
+				memset(txb, ms->xlaw == __zt_alaw ? 0x55 : 0xFF, bytes);
 			} else {
-				memset(txb, 0xff, bytes);
+				memset(txb, 0xFF, bytes);
 			}
 		} else {
 			memset(txb, ZT_LIN2X(0, ms), bytes);	/* Lastly we use silence on telephony channels */