8792a8793,8799
> 		/* BEGIN: Nortel proprieatry SIP INFO ping patch */
> 		} else if (!strcasecmp(get_header(req, "k"), "com.nortelnetworks.firewall,p-3rdpartycontrol,nosec")) {
> 			if (option_verbose > 2) {
> 				ast_verbose("    -- Got (Nortel proprietary) SIP INFO PING message from %s\n", p->callid);
> 			}
> 			transmit_response(p, "200 OK", req);
> 		/* END: Nortel proprieatry SIP INFO ping patch */