Could you post the output from a
'debug dialer events' command.  Then 
we can see the reason that routerB 
initiates the call.

______________________________

Thomas Crowe
Senior Systems Engineer / Senior Architect
EMC Proven Master Architect
CTS Professional Services - Atlanta
______________________________ 

-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
Sent: Thursday, June 13, 2002 6:34 PM
To: [EMAIL PROTECTED]
Subject: ISDN -- challenge! [7:46496]




Router A and Router B are connected to an Atlas 550 via BRI interfaces

Router A ---- ATLAS --- ROUTER B

Both router are configured with DDR Dialer maps so that Router A can call
router B or vice-versa (basic stuff).

When Router A is called by Router B, Router A answers normally and the link
goes up, but then (surprisingly), Router A attempts to initiate a
connection
to Router B . This connection fails because I only configured the phone
number for one channel (Isdn error 17: User is busy).

Is this calling of Router A a normal behavior? (I don't think so!)

I fixed the problem by simpling removing the phone number from the map
statement of Router A. I am posting here the debug before and after I
removed the phone number on A. The debug where captured on Router A.

I have spent the day on the apparently trivial question: why is Router A
calling Router B when I have no call back of any sort.
Still no light ...  Want to step up to the challenge? :)

Before:

00:32:45: ISDN BR0/0: RX  on B1 at 64 Kb/s
00:32:45: ISDN BR0/0: Event: Accepting the call id 0xD
00:32:193273528320: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
01:51:113824615516: %LINK-3-UPDOWN: Interface BRI0:1, changed state to up
00:32:45: ISDN BR0/0: TX -> CALL_PROC pd = 8  callref = 0x84
00:32:45:         Channel ID i = 0x89
00:32:45: ISDN BR0/0: TX -> CONNECT pd = 8  callref = 0x84
00:32:45:         Channel ID i = 0x89
00:32:45: ISDN BR0/0: RX  SETUP pd = 8  callref = 0x09
00:32:47:         Bearer Capability i = 0x8890
00:32:47:         Channel ID i = 0x83
00:32:47:         Keypad Facility i = '5553333'
00:32:47: ISDN BR0/0: RX  RELEASE pd = 8  callref = 0x09
00:32:47: ISDN BR0/0: RX  SETUP pd = 8  callref = 0x0A
00:32:49:         Bearer Capability i = 0x8890
00:32:49:         Channel ID i = 0x83
00:32:49:         Keypad Facility i = '5553333'
00:32:49: ISDN BR0/0: RX  RELEASE pd = 8  callref = 0x0A
00:32:49: ISDN BR0/0: RX  SETUP pd = 8  callref = 0x0B
00:32:51:         Bearer Capability i = 0x8890
00:32:51:         Channel ID i = 0x83
00:32:51:         Keypad Facility i = '5553333'
00:32:51: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to  isdn3
00:32:51: ISDN BR0/0: RX  RELEASE pd = 8  callref = 0x0B
00:32:51: ISDN BR0/0: RX  SETUP pd = 8  callref = 0x0C
00:32:53:         Bearer Capability i = 0x8890
00:32:53:         Channel ID i = 0x83
00:32:53:         Keypad Facility i = '5553333'
00:32:53: ISDN BR0/0: RX  RELEASE pd = 8  callref = 0x0C
00:32:53: ISDN BR0/0: RX  on B1 at 64 Kb/s
00:41:53: ISDN BR0/0: Event: Accepting the call id 0x10
00:41:227633266688: %LINK-3-UPDOWN: Interface BRI0/0:1, changed state to up
02:00:146028888128: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to
5551234
00:41:53: ISDN BR0/0: TX -> CALL_PROC pd = 8  callref = 0x85
00:41:53:         Channel ID i = 0x89
00:41:53: ISDN BR0/0: TX -> CONNECT pd = 8  callref = 0x85
00:41:53:         Channel ID i = 0x89
00:41:53: ISDN BR0/0: RX <- CONNECT_ACK pd = 8  callref = 0x05..
02:00:37: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0:1, changed
state to up
00:41:56: %LINEPROTO-5-UPDOWN: Line protocol on Interface BRI0/0:1, changed
state to
up.
02:00:40: %ISDN-6-CONNECT: Interface BRI0:1 is now connected to 5551234
isdn1
00:41:59: %ISDN-6-CONNECT: Interface BRI0/0:1 is now connected to  isdn3..

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