diff -urN asterisk-1.2.18.orig/channels/chan_agent.c asterisk-1.2.18/channels/chan_agent.c
--- asterisk-1.2.18.orig/channels/chan_agent.c	2007-03-01 03:55:45.000000000 +0900
+++ asterisk-1.2.18/channels/chan_agent.c	2007-07-09 11:32:05.425608352 +0900
@@ -1843,7 +1843,7 @@
 						ast_verbose(VERBOSE_PREFIX_3 "Saw variable AGENTWRAPUPTIME=%s, setting wrapuptime to: %d for Agent '%s'.\n",tmpoptions,p->wrapuptime,p->agent);
 				}
 				/* End Channel Specific Agent Overrides */
-				if (!p->chan) {
+				if (!p->chan && ast_strlen_zero(p->loginchan)) {
 					char last_loginchan[80] = "";
 					long logintime;
 					snprintf(agent, sizeof(agent), "Agent/%s", p->agent);