Does "T.37 Store-and-Forward Fax" on Cisco 2900 Platfotm consume DSP resource?

[failee2007]

Hi Experts,

I would like to know if the "T.37 Store-and-Forward Fax" function run on Cisco 2900 Seriese Router platform will consume how many DSP resource.

According to the DSP Calculator, there are only "T.38 Fax Relay" listed as a "Medium Complexity Codecs", but i do not see "T.37 Store-and-Forward Fax" listed.

By the way, i have found an article about the I/O memory usage for the "T.37 Store-and-Forward Fax", https://supportforums.cisco.com/docs/DOC-1810.

It stated that for "T.37 Store-and-Forward Fax", it will consume I/O memory for the fax processing.

--T.37 is a store-and-forward method, and it needs packet memory to store  fax messages. This puts a requirement of 2.0 MB of iomem and 8.0 MB of  process memory to be free before admitting any T.37 fax call.--

My question is, does it consume DSP resource at all or only I/O memory on the Router?

[Payal Bhaduri · Accepted solution]

Hi,

T.37 call are considered "medium complexity' from a DSP resource perspective.

i will give you the link that will understand this better.

http://books.google.co.in/books?id=mmocBBbJaa0C&pg=PA224&lpg=PA224&dq=T.37+dsp&source=bl&ots=0zFQAKPLu-&sig=bCLQCSrHNsGPfKImzQGdG0-vH5E&hl=en&ei=pwiHTdbEDsSqrAeekJk2&sa=X&oi=book_result&ct=result&resnum=5&ved=0CDAQ6AEwBA#v=onepage&q=T.37%20dsp&f=fals...

Hope this answers your question.

[failee2007]

Thank you for the information.