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DTMF on IP-line

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zols

Technical User
Jul 20, 2007
49
AT
We have an IP-line from Vienna to Moscow. For 46xx phone DTMF does not. With analogue phones does the DTMF. Anybody know the problem? SW 4.1.9 - IPO500

 
Are your phones on the latest firmware ?
Did you try the 2_3 firmware ?


ACA - Implement IP Office
ACA - Voice Services Management
______________
Women and cats can do as they please and men and dogs should relax and get used to the idea!
 
We had a IPO412 previously in use. With 3.2.59 SW, then upgrade to 4.0.5. This was the DTMF election ok. We have the phones after the exchange of course heavily. We then tried the phones with other software versions. About a choice from outside ISDN, DTMF to Moscow is also ok.

 
i meand the software on the phone itself
with 4.0.5 it should have 2_3
With 4.0. and higher it will get 2_8xxx with tftp uploads
Did you upgrade the phones also ?


ACA - Implement IP Office
ACA - Voice Services Management
______________
Women and cats can do as they please and men and dogs should relax and get used to the idea!
 
Oke and did you try with the 2_3 software on the phones ?

Also do you have direct media path on or off on your ipline ?
If on try off !

ACA - Implement IP Office
ACA - Voice Services Management
______________
Women and cats can do as they please and men and dogs should relax and get used to the idea!
 
Are they going through intelligent switches?
Have you a method of testing 1 ip phonw with a power brick ang getting the same results?

ACA - IP Office Implement
ACA - IP Telephony
ACS - IP Office Implement
CCNA - Working towards.
 
@tlpeter

The remote office in Moscow is a Cisco Call Manager and is the alliance of GazProm. Can I send you the Config? My address: maritschnegg@voicenet.at

 
I don't need the config :)

Make sure the direct media path is unchecked

Try the 2_3 files on the 46xx phones

If it all does not work then downgrade untill you know what the problem is


ACA - Implement IP Office
ACA - Voice Services Management
______________
Women and cats can do as they please and men and dogs should relax and get used to the idea!
 
What codec do the IP phones have?
If they have G729 or G723 you to mark the option "out of band DTMF"
Goto; Extension > select extension > Voip Tab > mark out of band DTMF.

greetzzz...Bas

___________________________________________
It works! Now if only I could remember what I did...
___________________________________________
 
I will re-enter my comment/question.

Are they going through intelligent switches?
Have you a method of testing 1 ip phonw with a power brick ang getting the same results?

ACA - IP Office Implement
ACA - IP Telephony
ACS - IP Office Implement
CCNA - Working towards.
 
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