Fix para que los usuarios realtime sip no se gareticen cuando se hace un “sip reload”.
/* then we need to
* parse the entry to obtain the IP address, so a dynamic host can be
* contacted immediately after reload (as opposed to waiting for it to
* register once again). But if we have an address for this peer and NAT was
* specified, use that address instead. */
channels/chan_sip.c