A speed mismatch can occur when the source and destination ISDN ports do not belong to the same network. try setting The following example sets the line speed for incoming calls to 56 kbps: command on bri int isdn not-end-to-end 56 or 64(def) -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Saturday, July 21, 2001 10:28 AM To: [EMAIL PROTECTED] Subject: what is Bearer capability not implemented in ISDN ? [7:13182] Hello all, When I am trying to generate the call on ISDN ,I am not able to connect the ISDN Upon debug ISDN events and debug isdn q931 ,I got the cause to be as follow Cause i = 0x82C1 - Bearer capability not implemented The sample of the debug is given below for more help.Can anybody tell me this could be due to what ? Is it a line problem because I tested the line voltage and found to be around 105.6 Volts ,Also Upon connecting the ISDN instrument to this line I am able to get dial tone as well as generate voice calls? 4w1d: ISDN BR1/1: Outgoing call id = 0x8F65 4w1d: ISDN BR1/1: Event: Call to 6156540 at 64 Kb/s 4w1d: ISDN BR1/1: TX -> SETUP pd = 8 callref = 0x0B 4w1d: Bearer Capability i = 0x8890 4w1d: Channel ID i = 0x83 4w1d: Called Party Number i = 0x80, '6156540' 4w1d: ISDN BR1/1: RX <- RELEASE_COMP pd = 8 callref = 0x8B 4w1d: Cause i = 0x82C1 - Bearer capability not implemented 4w1d: ISDN BR1/1: received HOST_DISCONNECT_ACK call_id 0x8F65 4w1d: ISDN BR1/1: Error: Unexpected Disconnect_Ack - call id 0x8F65..... Success rate is 0 percent (0/5) Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=13185&t=13185 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]