Add callstate (and color) for busy and diverted calls.

Diverted calls were shown as in call and busy calls as rejected.

src/sip_attr.c

@@ -165,5 +165,9 @@ sip_attr_color_state(const char *value)
         return COLOR_PAIR(CP_RED_ON_DEF);
     if (!strcmp(value, call_state_to_str(SIP_CALLSTATE_REJECTED)))
         return COLOR_PAIR(CP_RED_ON_DEF);
+    if (!strcmp(value, call_state_to_str(SIP_CALLSTATE_BUSY)))
+        return COLOR_PAIR(CP_MAGENTA_ON_DEF);
+    if (!strcmp(value, call_state_to_str(SIP_CALLSTATE_DIVERTED)))
+        return COLOR_PAIR(CP_CYAN_ON_DEF);
     return 0;
 }

src/sip_call.c

@@ -218,9 +218,15 @@ call_update_state(sip_call_t *call, sip_msg_t *msg)
             } else if (reqresp == SIP_METHOD_CANCEL) {
                 // Alice is not in the mood
                 call->state = SIP_CALLSTATE_CANCELLED;
+            } else if ((reqresp == 480) || (reqresp == 486)) {
+                // Bob is busy
+                call->state = SIP_CALLSTATE_BUSY;
             } else if (reqresp > 400 && call->invitecseq == msg->cseq) {
                 // Bob is not in the mood
                 call->state = SIP_CALLSTATE_REJECTED;
+            } else if (reqresp > 300) {
+                // Bob has diversion
+                call->state = SIP_CALLSTATE_DIVERTED;
             }
         } else if (call->state == SIP_CALLSTATE_INCALL) {
             if (reqresp == SIP_METHOD_BYE) {
@@ -306,6 +312,10 @@ call_state_to_str(int state)
             return "CANCELLED";
         case SIP_CALLSTATE_REJECTED:
             return "REJECTED";
+        case SIP_CALLSTATE_BUSY:
+            return "BUSY";
+        case SIP_CALLSTATE_DIVERTED:
+            return "DIVERTED";
         case SIP_CALLSTATE_COMPLETED:
             return "COMPLETED";
     }

src/sip_call.h

@@ -47,6 +47,8 @@ enum call_state
     SIP_CALLSTATE_INCALL,
     SIP_CALLSTATE_CANCELLED,
     SIP_CALLSTATE_REJECTED,
+    SIP_CALLSTATE_DIVERTED,
+    SIP_CALLSTATE_BUSY,
     SIP_CALLSTATE_COMPLETED
 };