[Asterisk-Dev] SIP does NOT change bindaddr when "sip reload"

[redice li]

I found that if I change the bindaddr in sip.conf, then use "sip 
reload", the address is re-read by chan_sip, but the bind address is not 
really changed. "sip reload" only change bind address when a only port 
change in sip.conf(see below):

static int reload_config(void)
{
    .....

    if ((sipsock > -1) && (ntohs(bindaddr.sin_port) != oldport)) {
        close(sipsock);
        sipsock = -1;
    }
    if (sipsock < 0) {
       /* DO bind here */
       ...

When use "sip show settings", it display the settings with new bindaddr, 
but netstat show old address binded!