Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Community Member

1760 cme 4.1 - hung up tone not detected

Router 1760 ccme 4.1

IOS c1700-adventerprisek9-mz.124-15.T1.bin

slot0 WIC-1ADSL-I-DG

slot1 empty

slot2 vic2-2BRI-/TE

I am facing two problems.

1. When an income call is answered and the remote caller hang up the bri card detects the end call. when someone calls a public number the bri card keeps the port open even though the call is terminated by the remote peer.

2. We don't hear the moh sound when a call is on hold.

1 ACCEPTED SOLUTION

Accepted Solutions
Hall of Fame Super Gold

Re: 1760 cme 4.1 - hung up tone not detected

Hi,

first advice is that you switch to 12.4(11)XJ4 that has many bugs fixed.

Then if still problems, please collect "debug isdn q931" with term mon.

15 REPLIES
Hall of Fame Super Gold

Re: 1760 cme 4.1 - hung up tone not detected

Hi,

first advice is that you switch to 12.4(11)XJ4 that has many bugs fixed.

Then if still problems, please collect "debug isdn q931" with term mon.

Community Member

Re: 1760 cme 4.1 - hung up tone not detected

I that case I have to use an other IOS version compatible with 1760. Is that correct?

Hall of Fame Super Gold

Re: 1760 cme 4.1 - hung up tone not detected

I'm sorry, there are no XJ4 images for the 1700.

You can get a better image only with 12.4(15)T2.

However you can take the trace immediately. ISDN doesn't use tones and is unlikely that telco doesn't send disconnect when the remote hang up.

Community Member

Re: 1760 cme 4.1 - hung up tone not detected

Thank you for you replay.

I am attaching the debug ISDN file, I hope it will help.

Is it possible to be the image of the ip phones ver sccp 8-2-2SR1S?

Community Member

Re: 1760 cme 4.1 - hung up tone not detected

Thank you for you replay.

I am attaching the debug ISDN file, I hope it will help.

Is it possible to be the image of the ip phones ver sccp 8-2-2SR1S?

Hall of Fame Super Gold

Re: 1760 cme 4.1 - hung up tone not detected

Hi,

At line 3752 I see the release coming from network, as normal. Next time please enable only debug isdn q931, do not enable any other debug.

There is a newer firmware 8-2-2SR4S, but it should not make a difference.

Can you explain again the problem, what happens when the remote hang-up ?

Community Member

Re: 1760 cme 4.1 - hung up tone not detected

OK see attached file

When we place a call to a public number 8888888888 when the public number user hungs up, the line still remains connected until we hungup the phone (ext, 200)

Hall of Fame Super Gold

Re: 1760 cme 4.1 - hung up tone not detected

Hi, the trace is much easier to read now, thank you.

In this case, the disconnection is made by the router at line 3828. If you are sure that the other side has hang up first, you should ask telco if that is normal, but they may answer that since it is the router that originated the call, it will not be notified when the called person hangs-up.

I have never seen anything like that, but they might do that for compatibility with the old analog telephone system, where the called person could not actually disconnect the call, only the calling could.

Do the same try, but have the remote telephone to call you, not viceversa.

Community Member

Re: 1760 cme 4.1 - hung up tone not detected

Hi, when I receive a call from a remote telephone,whenever the remote caller hangs up the cisco phone disconects fine! I will be at the office soon and I will attach the debug log.

Community Member

Re: 1760 cme 4.1 - hung up tone not detected

try this:

voice-port 2/0

no local-bypass

voice-port 2/1

no local-bypass

Community Member

Re: 1760 cme 4.1 - hung up tone not detected

Hi yenlung.

My router and/or IOS do not support the local-bypass command the way you suggested.

but,

1760CCME(config)#voice-card 2

1760CCME(config-voicecard)#no local-bypass

% local-bypass is not supported in this platform

% DSPs are always engaged for local POTS-to-POTS calls

Any help on that?

Community Member

Re: 1760 cme 4.1 - hung up tone not detected

Here is the debug for an incomming call.

Everything works fine!

Hall of Fame Super Gold

Re: 1760 cme 4.1 - hung up tone not detected

Yes, then as I supposed before, your country system is made so that you receive far-end disconnect only when the call was initiated from remote.

On the other hand it is customary that who initiates the call, disconnects first.

Community Member

Re: 1760 cme 4.1 - hung up tone not detected

O.K. I undersand that!

Is there a solution?

Hall of Fame Super Gold

Re: 1760 cme 4.1 - hung up tone not detected

Excuse me, but what is the problem ? When the remote hangs up, the person that has called understand the conversation has ended, and hangs up too.

336
Views
0
Helpful
15
Replies
CreatePlease to create content