4406D+ digital phones companding A/U law problem

• Aug 30, 2004

• #2

dencom

Technical User

Feb 16, 2004

182

NL

If you are using a pri line, it might never work. The 4406 phones have been withdrawn for that reason here in Holland.

Try changing the A/Ulaw setting via the manager under system/telephony and see if this solves you problem.

Good luck

Arnoud

 

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• Aug 30, 2004

• #3

NuggiFirst

Programmer

Jul 11, 2003

279

DK

System-companding has to be set to u-law. If the system is in EU, the line-cmpanding most likely are a-law. This can only work if you have a Uni BRI line-module.

In that case, as mentioned above, set system-companding to u-law.

 

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• Aug 31, 2004

• Thread starter
• #4

gapelbaum

Technical User

Oct 17, 2003

36

UY

Does any know if there are any internal switch, or any phone
commands to change the companding law on the phones 4406 ?

I believe that this feature should be configurable.

Thanks,

Gustavo.

 

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• Aug 31, 2004

• #5

IPGuru

Vendor

Jun 24, 2003

8,391

GB

I believe that the 44XX serise phones have thier companding fixed, this i why avaa added the option to select different companding for internal modules & external lines.

Alaw lines (europe) can have either uLaw oa aLaw phones

44xx phones are ulaw only, 64xx (&20xx) phones can be either alaw or ulaw.

set system companding to ulaw & line to alaw & you should be fine

 

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• Aug 31, 2004

• Thread starter
• #6

gapelbaum

Technical User

Oct 17, 2003

36

UY

Thanks for your reply Mr. IPGuru.

But how I can set the line (ISDN E1 PRI) companding to Alaw, in which menu of the mananger is this options. ?

I only know to setup the A/U law in the System Configuration
-Telephony windows.

Thanks,

Gustavo

 

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• Aug 31, 2004

• #7

Morrack

Vendor

May 13, 2004

1,264

CA

44xx phones are definately u-law only, therefore the IPO must be set to u-law under the system tab if you are going to use them. This cannot be changed. The 64xx are international phones, as mentioned they can support either companding.

Peter

 

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• Aug 31, 2004

• #8

NuggiFirst

Programmer

Jul 11, 2003

279

DK

As Dencom mentions, this can't be done when you have a PRI module. It's only when the line-module is a Uni BRI it's possible to use 44xx phones in EU.

Sorry...

 

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• Sep 1, 2004

• #9

IPGuru

Vendor

Jun 24, 2003

8,391

GB

the copmpanding setting is in the systemn tab.
as it is posible to leave the line set for aLaw & set the system for ulaw i would not think that pri lines should cause a problem
However as I have never tried this setup I would have to bow to nuggi's experiance

 

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• Sep 1, 2004

• #10

Morrack

Vendor

May 13, 2004

1,264

CA

There is no companding setting in my PRI line form - but perhaps it's different for an E1 PRI?

Peter

 

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• Sep 1, 2004

• #11

IPGuru

Vendor

Jun 24, 2003

8,391

GB

peter it is not in the line form but in system/telephony

 

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• Sep 2, 2004

• #12

Morrack

Vendor

May 13, 2004

1,264

CA

DOH! I hadn't even noticed we have extra options there now! Last time I bothered to look at that was months ago when I got a system here that was configured for european operation - and we still only had Alaw or Ulaw, not Alaw line and Ulaw line options as well.



Peter

 

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