diff --git a/Makefile b/Makefile
index 93bde76..1a013f0 100644
--- a/Makefile
+++ b/Makefile
@@ -60,8 +60,8 @@ clean:
 config.h:
 	./create_config.sh "$(ASTERISK_HEADER_DIR)"
 
-chan_capi.so: chan_capi.o
-	$(CC) -shared -Xlinker -x -o $@ chan_capi.o -lcapi20
+chan_capi.so: chan_capi.o c20msg.o
+	$(CC) -shared -Xlinker -x -o $@ $^ -lcapi20
 
 install: all
 	for x in $(SHAREDOS); do $(INSTALL) -m 755 $$x $(MODULES_DIR) ; done
diff --git a/c20msg.c b/c20msg.c
new file mode 100644
index 0000000..afdf164
--- /dev/null
+++ b/c20msg.c
@@ -0,0 +1,327 @@
+#include <stdio.h>
+
+/*
+ * decode capi 2.0 info word
+ */
+char *capi_info_string(unsigned int info)
+{
+	switch (info) {
+	/* informative values (corresponding message was processed) */
+	case 0x0001:
+		return "NCPI not supported by current protocol, NCPI ignored";
+	case 0x0002:
+		return "Flags not supported by current protocol, flags ignored";
+	case 0x0003:
+		return "Alert already sent by another application";
+
+	/* error information concerning CAPI_REGISTER */
+	case 0x1001:
+		return "Too many applications";
+	case 0x1002:
+		return "Logical block size to small, must be at least 128 Bytes";
+	case 0x1003:
+		return "Buffer exceeds 64 kByte";
+	case 0x1004:
+		return "Message buffer size too small, must be at least 1024 Bytes";
+	case 0x1005:
+		return "Max. number of logical connections not supported";
+	case 0x1006:
+		return "Reserved";
+	case 0x1007:
+		return "The message could not be accepted because of an internal busy condition";
+	case 0x1008:
+		return "OS resource error (no memory ?)";
+	case 0x1009:
+		return "CAPI not installed";
+	case 0x100A:
+		return "Controller does not support external equipment";
+	case 0x100B:
+		return "Controller does only support external equipment";
+
+	/* error information concerning message exchange functions */
+	case 0x1101:
+		return "Illegal application number";
+	case 0x1102:
+		return "Illegal command or subcommand or message length less than 12 bytes";
+	case 0x1103:
+		return "The message could not be accepted because of a queue full condition !! The error code does not imply that CAPI cannot receive messages directed to another controller, PLCI or NCCI";
+	case 0x1104:
+		return "Queue is empty";
+	case 0x1105:
+		return "Queue overflow, a message was lost !! This indicates a configuration error. The only recovery from this error is to perform a CAPI_RELEASE";
+	case 0x1106:
+		return "Unknown notification parameter";
+	case 0x1107:
+		return "The Message could not be accepted because of an internal busy condition";
+	case 0x1108:
+		return "OS Resource error (no memory ?)";
+	case 0x1109:
+		return "CAPI not installed";
+	case 0x110A:
+		return "Controller does not support external equipment";
+	case 0x110B:
+		return "Controller does only support external equipment";
+
+	/* error information concerning resource / coding problems */
+	case 0x2001:
+		return "Message not supported in current state";
+	case 0x2002:
+		return "Illegal Controller / PLCI / NCCI";
+	case 0x2003:
+		return "Out of PLCIs";
+	case 0x2004:
+		return "Out of NCCIs";
+	case 0x2005:
+		return "Out of LISTEN requests";
+	case 0x2006:
+		return "Out of FAX resources (protocol T.30)";
+	case 0x2007:
+		return "Illegal message parameter coding";
+
+	/* error information concerning requested services */
+	case 0x3001:
+		return "B1 protocol not supported";
+	case 0x3002:
+		return "B2 protocol not supported";
+	case 0x3003:
+		return "B3 protocol not supported";
+	case 0x3004:
+		return "B1 protocol parameter not supported";
+	case 0x3005:
+		return "B2 protocol parameter not supported";
+	case 0x3006:
+		return "B3 protocol parameter not supported";
+	case 0x3007:
+		return "B protocol combination not supported";
+	case 0x3008:
+		return "NCPI not supported";
+	case 0x3009:
+		return "CIP Value unknown";
+	case 0x300A:
+		return "Flags not supported (reserved bits)";
+	case 0x300B:
+		return "Facility not supported";
+	case 0x300C:
+		return "Data length not supported by current protocol";
+	case 0x300D:
+		return "Reset procedure not supported by current protocol";
+	case 0x300E:
+		return "TEI assignment failed or supplementary service not supported";
+	case 0x3010:
+		return "Request not allowed in this state";
+
+	/* informations about the clearing of a physical connection */
+	case 0x3301:
+		return "Protocol error layer 1 (broken line or B-channel removed by signalling protocol)";
+	case 0x3302:
+		return "Protocol error layer 2";
+	case 0x3303:
+		return "Protocol error layer 3";
+	case 0x3304:
+		return "Another application got that call";
+
+	/* T.30 specific reasons */
+	case 0x3311:
+		return "Connecting not successful (remote station is no FAX G3 machine)";
+	case 0x3312:
+		return "Connecting not successful (training error)";
+	case 0x3313:
+		return "Disconnected before transfer (remote station does not support transfer mode, e.g. resolution)";
+	case 0x3314:
+		return "Disconnected during transfer (remote abort)";
+	case 0x3315:
+		return "Disconnected during transfer (remote procedure error, e.g. unsuccessful repetition of T.30 commands)";
+	case 0x3316:
+		return "Disconnected during transfer (local tx data underrun)";
+	case 0x3317:
+		return "Disconnected during transfer (local rx data overflow)";
+	case 0x3318:
+		return "Disconnected during transfer (local abort)";
+	case 0x3319:
+		return "Illegal parameter coding (e.g. SFF coding error)";
+
+	/* disconnect causes from the network according to ETS 300 102-1/Q.931 */
+	case 0x3481:
+		return "Unallocated (unassigned) number";
+	case 0x3482:
+		return "No route to specified transit network";
+	case 0x3483:
+		return "No route to destination";
+	case 0x3486:
+		return "Channel unacceptable";
+	case 0x3487:
+		return "Call awarded and being delivered in an established channel";
+	case 0x3490:
+		return "Normal call clearing";
+	case 0x3491:
+		return "User busy";
+	case 0x3492:
+		return "No user responding";
+	case 0x3493:
+		return "No answer from user (user alerted)";
+	case 0x3495:
+		return "Call rejected";
+	case 0x3496:
+		return "Number changed";
+	case 0x349A:
+		return "Non-selected user clearing";
+	case 0x349B:
+		return "Destination out of order";
+	case 0x349C:
+		return "Invalid number format";
+	case 0x349D:
+		return "Facility rejected";
+	case 0x349E:
+		return "Response to STATUS ENQUIRY";
+	case 0x349F:
+		return "Normal, unspecified";
+	case 0x34A2:
+		return "No circuit / channel available";
+	case 0x34A6:
+		return "Network out of order";
+	case 0x34A9:
+		return "Temporary failure";
+	case 0x34AA:
+		return "Switching equipment congestion";
+	case 0x34AB:
+		return "Access information discarded";
+	case 0x34AC:
+		return "Requested circuit / channel not available";
+	case 0x34AF:
+		return "Resources unavailable, unspecified";
+	case 0x34B1:
+		return "Quality of service unavailable";
+	case 0x34B2:
+		return "Requested facility not subscribed";
+	case 0x34B9:
+		return "Bearer capability not authorized";
+	case 0x34BA:
+		return "Bearer capability not presently available";
+	case 0x34BF:
+		return "Service or option not available, unspecified";
+	case 0x34C1:
+		return "Bearer capability not implemented";
+	case 0x34C2:
+		return "Channel type not implemented";
+	case 0x34C5:
+		return "Requested facility not implemented";
+	case 0x34C6:
+		return "Only restricted digital information bearer capability is available";
+	case 0x34CF:
+		return "Service or option not implemented, unspecified";
+	case 0x34D1:
+		return "Invalid call reference value";
+	case 0x34D2:
+		return "Identified channel does not exist";
+	case 0x34D3:
+		return "A suspended call exists, but this call identity does not";
+	case 0x34D4:
+		return "Call identity in use";
+	case 0x34D5:
+		return "No call suspended";
+	case 0x34D6:
+		return "Call having the requested call identity has been cleared";
+	case 0x34D8:
+		return "Incompatible destination";
+	case 0x34DB:
+		return "Invalid transit network selection";
+	case 0x34DF:
+		return "Invalid message, unspecified";
+	case 0x34E0:
+		return "Mandatory information element is missing";
+	case 0x34E1:
+		return "Message type non-existent or not implemented";
+	case 0x34E2:
+		return "Message not compatible with call state or message type non-existent or not implemented";
+	case 0x34E3:
+		return "Information element non-existent or not implemented";
+	case 0x34E4:
+		return "Invalid information element contents";
+	case 0x34E5:
+		return "Message not compatible with call state";
+	case 0x34E6:
+		return "Recovery on timer expiry";
+	case 0x34EF:
+		return "Protocol error, unspecified";
+	case 0x34FF:
+		return "Interworking, unspecified";
+
+	/* B3 protocol 7 (Modem) */
+	case 0x3500:
+		return "Normal end of connection";
+	case 0x3501:
+		return "Carrier lost";
+	case 0x3502:
+		return "Error on negotiation, i.e. no modem with error correction at other end";
+	case 0x3503:
+		return "No answer to protocol request";
+	case 0x3504:
+		return "Remote modem only works in synchronous mode";
+	case 0x3505:
+		return "Framing fails";
+	case 0x3506:
+		return "Protocol negotiation fails";
+	case 0x3507:
+		return "Other modem sends wrong protocol request";
+	case 0x3508:
+		return "Sync information (data or flags) missing";
+	case 0x3509:
+		return "Normal end of connection from the other modem";
+	case 0x350a:
+		return "No answer from other modem";
+	case 0x350b:
+		return "Protocol error";
+	case 0x350c:
+		return "Error on compression";
+	case 0x350d:
+		return "No connect (timeout or wrong modulation)";
+	case 0x350e:
+		return "No protocol fall-back allowed";
+	case 0x350f:
+		return "No modem or fax at requested number";
+	case 0x3510:
+		return "Handshake error";
+
+	/* error info concerning the requested supplementary service */
+	case 0x3600:
+		return "Supplementary service not subscribed";
+	case 0x3603:
+		return "Supplementary service not available";
+	case 0x3604:
+		return "Supplementary service not implemented";
+	case 0x3606:
+		return "Invalid served user number";
+	case 0x3607:
+		return "Invalid call state";
+	case 0x3608:
+		return "Basic service not provided";
+	case 0x3609:
+		return "Supplementary service not requested for an incoming call";
+	case 0x360a:
+		return "Supplementary service interaction not allowed";
+	case 0x360b:
+		return "Resource unavailable";
+
+	/* error info concerning the context of a supplementary service request */
+	case 0x3700:
+		return "Duplicate invocation";
+	case 0x3701:
+		return "Unrecognized operation";
+	case 0x3702:
+		return "Mistyped argument";
+	case 0x3703:
+		return "Resource limitation";
+	case 0x3704:
+		return "Initiator releasing";
+	case 0x3705:
+		return "Unrecognized linked-ID";
+	case 0x3706:
+		return "Linked response unexpected";
+	case 0x3707:
+		return "Unexpected child operation";
+
+	default:
+		return NULL;
+	}
+}
+
diff --git a/chan_capi.c b/chan_capi.c
index 8265bab..cf1aa98 100644
--- a/chan_capi.c
+++ b/chan_capi.c
@@ -104,6 +104,9 @@ static int capidebug = 0;
 /* local prototypes */
 static int capi_indicate(struct ast_channel *c, int condition);
 
+/* external prototypes */
+extern char *capi_info_string(unsigned int info);
+
 /* */
 #define return_on_no_interface(x)                                       \
 	if (!i) {                                                       \
@@ -111,6 +114,27 @@ static int capi_indicate(struct ast_channel *c, int condition);
 		return;                                                 \
 	}
 
+/*
+ * show the text for a CAPI message info value
+ */
+static void show_capi_info(_cword info)
+{
+	char *p;
+	
+	if (info == 0x0000) {
+		/* no error, do nothing */
+		return;
+	}
+
+	if (!(p = capi_info_string((unsigned int)info))) {
+		/* message not available */
+		return;
+	}
+	
+	cc_ast_verbose(3, 0, VERBOSE_PREFIX_4 "CAPI INFO 0x%04x: %s\n",
+		info, p);
+}
+
 /*
  * get a new capi message number atomically
  */
@@ -2202,6 +2226,7 @@ static void capi_handle_facility_indication(_cmsg *CMSG, unsigned int PLCI, unsi
 				i->name, PLCI,
 				FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[5],
 				FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]);
+			show_capi_info(read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]));
 		}
 
 		/* RETRIEVE */
@@ -2213,6 +2238,7 @@ static void capi_handle_facility_indication(_cmsg *CMSG, unsigned int PLCI, unsi
 					i->name, PLCI,
 					FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[5],
 					FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]);
+				show_capi_info(read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]));
 			} else {
 				/* reason != 0x0000 == problem */
 				i->state = CAPI_STATE_CONNECTED;
@@ -2242,6 +2268,7 @@ static void capi_handle_facility_indication(_cmsg *CMSG, unsigned int PLCI, unsi
 					i->name, PLCI,
 					FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[5],
 					FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]);
+				show_capi_info(read_capi_word(&FACILITY_IND_FACILITYINDICATIONPARAMETER(CMSG)[4]));
 			} else {
 				/* reason = 0x0000 == call on hold */
 				i->state = CAPI_STATE_ONHOLD;
@@ -2531,6 +2558,8 @@ static void capi_handle_disconnect_indication(_cmsg *CMSG, unsigned int PLCI, un
 	DISCONNECT_RESP_PLCI(&CMSG2) = PLCI;
 	_capi_put_cmsg(&CMSG2);
 	
+	show_capi_info(DISCONNECT_IND_REASON(CMSG));
+
 	return_on_no_interface("DISCONNECT_IND");
 
 	state = i->state;
@@ -2905,8 +2934,8 @@ static void capi_handle_facility_confirmation(_cmsg *CMSG, unsigned int PLCI, un
 	}
 	if (selector == i->ecSelector) {
 		if (FACILITY_CONF_INFO(CMSG)) {
-			cc_ast_verbose(2, 0, VERBOSE_PREFIX_3 "%s: Error setting up echo canceller (PLCI=%#x, Info=%#04x)\n",
-				i->name, PLCI, FACILITY_CONF_INFO(CMSG));
+			cc_ast_verbose(2, 0, VERBOSE_PREFIX_3 "%s: Error setting up echo canceller (PLCI=%#x)\n",
+				i->name, PLCI);
 			return;
 		}
 		if (FACILITY_CONF_FACILITYCONFIRMATIONPARAMETER(CMSG)[1] == EC_FUNCTION_DISABLE) {
@@ -2968,8 +2997,8 @@ static void capi_handle_confirmation(_cmsg *CMSG, unsigned int PLCI, unsigned in
 	case CAPI_CONNECT:
 		if (!i->owner)
 			break;
-		cc_ast_verbose(1, 1, VERBOSE_PREFIX_3 "%s: received CONNECT_CONF PLCI = %#x INFO = %#x\n",
-			i->name, PLCI, CONNECT_CONF_INFO(CMSG));
+		cc_ast_verbose(1, 1, VERBOSE_PREFIX_3 "%s: received CONNECT_CONF PLCI = %#x\n",
+			i->name, PLCI);
 		if (CONNECT_CONF_INFO(CMSG) == 0) {
 			i->PLCI = PLCI;
 		} else {
@@ -3063,6 +3092,7 @@ static void capi_handle_msg(_cmsg *CMSG)
 		break;
 	case CAPI_CONF:
 		capi_handle_confirmation(CMSG, PLCI, NCCI);
+		show_capi_info(CMSG->Info);
 		break;
 	}
 }