Using IP-Telephony on category 3 cabling

Unanswered Question
May 15th, 2007

We are researching te possibility to migrate from our 12 year old PABX to IP-telephony. Last year we replaced our switches by 3750-PoE Catalysts. We have one major issue, the entire building is equipped with Category 3 cabling and replacement of the cabling is not possible at the moment. So we are stuck to 10 Mb

Does anyone here have experience with IP-Telephony over cat.3 cabling?

We have questions like:

- Are there PoE issues?

- Is it still possible to connect a PC to the internal switch of the phone?

I have this problem too.
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hcombee Wed, 05/16/2007 - 04:08

Thanks for your fast response.

Do you know if Cisco has a whitepaper on this issue? (I couldn't find any information on the Cisco site).

One more question, is it also possible to use a seperate voice and data vlan on a 10 Mb port?

Paolo Bevilacqua Wed, 05/16/2007 - 05:37

Hi, on matter of cabling, all what the withepapers are saying that cat 5 or better is recommended. vlan at 10 on a 10/100 port is not a problem.

As a courtesy to those providing answers, please rate all useful posts!


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