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New Member

1750 voice upgrade

I've got a standard 1750 that I want to upgrade so I can run some FXS ports on it. I know I need to upgrade the Flash and RAM plus the IOS. I also understand I need to add a DSP module. Unfortunately, I can't find what DSP module it is that I need. Does anyone know the cisco part number?

Martin Weddle

ADP Dealer Services

3 REPLIES
Bronze

Re: 1750 voice upgrade

Taken from this page (http://www.cisco.com/warp/public/788/products/2fxs_vic.html) is this statement:

Note: On the Cisco 1750, a PVDM (Packet Voice DSP Module) is needed to support the VIC-2FXS. The PVDMs hold DSPs that make the card fully functional. The 1750 requires a PVDM-4 for one VIC-2FXS and a PVDM-8 for two VIC-2FXSs. These PVDMs are installed on the motherboard within the 1750. On the Cisco VG200, 2600, and 3600, the NM-1V and 2Vs come with the DSPs installed on the module.

Those part numbers are PVDM-256K-4 and PVDM-256K-8.

Rick

Bronze

Re: 1750 voice upgrade

My mistake people, look at the following page:

http://www.cisco.com/en/US/customer/products/hw/routers/ps221/products_tech_note09186a0080094a66.shtml

The PVDM-256K-x are NOT supported on the 1750 series. The correct PVDM part numbers are PVDM-4 and PVDM-8.

Rick

New Member

Re: 1750 voice upgrade

Thank you for the information. Very helpful

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