diff options
Diffstat (limited to 'channels/chan_sip.c')
| -rw-r--r-- | channels/chan_sip.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/channels/chan_sip.c b/channels/chan_sip.c index ebdb2d3a0..599007747 100644 --- a/channels/chan_sip.c +++ b/channels/chan_sip.c @@ -2413,7 +2413,9 @@ static int sip_sendtext(struct ast_channel *ast, const char *text) ast_verbose("Sending text %s on %s\n", text, ast->name); if (!p) return -1; - if (ast_strlen_zero(text)) + /* NOT ast_strlen_zero, because a zero-length message is specifically + * allowed by RFC 3428 (See section 10, Examples) */ + if (!text) return 0; if (debug) ast_verbose("Really sending text %s on %s\n", text, ast->name); |