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Maximum number of POTS lines

jaydien1358
Level 3
Level 3

Hello,

We are currently quoting a customer for a UC520 to replace a legacy PBX installed with 18 POTS lines.

I have been finding contradictory info in regards to the max # of POTS lines for the UC520.

This document says 12 max POTS lines:

https://www.myciscocommunity.com/docs/DOC-1416#What_are_the_total_number_of_PSTN_interfaces_that_the_UC500_can_support_

But the SBCS Pricing tool says that the max is 8 with the additional 4 port FXO card.

  1. What is the total number of POTS lines available?
  2. What can we offer this customer if they insist on keeping their 19 inbound phones lines?

Thanks.

Brian

1 Accepted Solution

Accepted Solutions

UC520-32U-8FXO-K9

It has 8FXO built in, and an expansion slot left for 4 more FXO.

UC520-48U-12FXO-K9

It has 8FXO built in, and the expansion slot is filled with a 4 FXO card.

http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/vcallcon/ps7293/product_data_sheet0900aecd8061fb06.html

Look near the bottom of that link.



View solution in original post

4 Replies 4

Steven DiStefano
VIP Alumni
VIP Alumni

https://www.myciscocommunity.com/docs/DOC-1416#What_are_the_total_number_of_PSTN_interfaces_that_the_UC500_can_support

What are the total number of PSTN interfaces that the UC500 can support?

Depending on the UC500 model or SKU - can have any of the below:

    • 4 to 12 FXO ports or 2 to 6 BRI ports (VIC slot can be used to add interfaces in certain model)
    • T1/E1 VWIC interface card for use in the 8-, 16-, and 32-user UC500 SKUs (VIC slot can be used to add this T1/E1 interface card)
    • UC500 48-user SKU is also available with integrated T1/E1 interface.

Ok.

So what model/sku UC520 would accept 8 additional FXO ports? I am only aware of the form factor for the UC520 that has 1 expansion slot.

Thanks.

-Brian

UC520-32U-8FXO-K9

It has 8FXO built in, and an expansion slot left for 4 more FXO.

UC520-48U-12FXO-K9

It has 8FXO built in, and the expansion slot is filled with a 4 FXO card.

http://www.cisco.com/en/US/prod/collateral/voicesw/ps6788/vcallcon/ps7293/product_data_sheet0900aecd8061fb06.html

Look near the bottom of that link.



Thank you very much for your help.

-Brian

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