diff -urN ./chan_sccp-20071213/sccp_device.c ./chan_sccp-20071213-mod-cp7931/sccp_device.c
--- ./chan_sccp-20071213/sccp_device.c	2007-12-13 20:48:30.000000000 +0200
+++ ./chan_sccp-20071213-mod-cp7931/sccp_device.c	2008-01-10 23:06:54.000000000 +0200
@@ -141,6 +141,10 @@
 			for (i = 0 ; i < 4 ; i++)
 				(btn++)->type = SKINNY_BUTTONTYPE_SPEEDDIAL;
 			break;
+		case SKINNY_DEVICETYPE_CISCO7931:
+                        for (i = 0 ; i < 24 ; i++)
+                    		(btn++)->type = SKINNY_BUTTONTYPE_MULTI;
+                        break;
 		default:
 		/* at least one line */
 		(btn++)->type = SKINNY_BUTTONTYPE_LINE;
diff -urN ./chan_sccp-20071213/sccp_protocol.h ./chan_sccp-20071213-mod-cp7931/sccp_protocol.h
--- ./chan_sccp-20071213/sccp_protocol.h	2007-12-13 20:48:30.000000000 +0200
+++ ./chan_sccp-20071213-mod-cp7931/sccp_protocol.h	2008-01-09 21:01:42.000000000 +0200
@@ -219,6 +219,7 @@
 #define SKINNY_DEVICETYPE_CISCO7941GE 				309
 #define SKINNY_DEVICETYPE_CISCO7911 				307
 #define SKINNY_DEVICETYPE_CISCO7985 				302
+#define SKINNY_DEVICETYPE_CISCO7931				348
 
 
 #define SKINNY_DEVICE_RS_NONE					0
diff -urN ./chan_sccp-20071213/sccp_utils.c ./chan_sccp-20071213-mod-cp7931/sccp_utils.c
--- ./chan_sccp-20071213/sccp_utils.c	2007-12-13 20:48:30.000000000 +0200
+++ ./chan_sccp-20071213-mod-cp7931/sccp_utils.c	2008-01-09 21:03:44.000000000 +0200
@@ -1273,6 +1273,8 @@
 		return "Cisco7971";
 	case SKINNY_DEVICETYPE_CISCO7985:
 		return "Cisco7985";
+	case SKINNY_DEVICETYPE_CISCO7931:
+                return "Cisco7931";				
 	default:
 		return "unknow";
 	}