--- app_voicemail.c.orig        2008-07-23 19:40:35.000000000 +0200
+++ app_voicemail.c     2008-07-24 11:15:46.000000000 +0200
@@ -8451,6 +8453,12 @@
                                ast_channel_setoption(chan, AST_OPTION_RXGAIN, &record_gain, sizeof(record_gain), 0);
                        if (ast_test_flag(vmu, VM_OPERATOR))
                                canceldtmf = "0";
+
+                       /* Generate silence while recording if specified in asterisk.conf configuration like in app_record.c */
+                       struct ast_silence_generator *silgen = NULL;
+                       if (ast_opt_transmit_silence) {
+                               silgen = ast_channel_start_silence_generator(chan);
+                       }
                        cmd = ast_play_and_record_full(chan, playfile, tempfile, maxtime, fmt, duration, silencethreshold, maxsilence, unlockdir, acceptdtmf, canceldtmf);
                        if (record_gain)
                                ast_channel_setoption(chan, AST_OPTION_RXGAIN, &zero_gain, sizeof(zero_gain), 0);