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Beginner

CISCO 2851 Router

Hello,

 

        I have Cisco 2851 router with 2 FXS port card which is inherited from another sister company. I would like to use this router in LAB using on analog line and installing CUCME version 8.1.

My question is Can I directly connect the rj11 to FXS port and start  calling ? I dont have any PBX.

 

 

Thanks

 

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2 ACCEPTED SOLUTIONS

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Hall of Fame Master

Re: CISCO 2851 Router

You do not need to install anything to make calls on this router as CME is built into IOS, you need to enable it with ‘telephony-service’.  You can then connect analog phones to these FXS ports.

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Contributor

Re: CISCO 2851 Router

Hi, FXS port is intended for connect analog phone instead FXO which intended for connect PSTN analog line.

But You need PVDM for work with analog telephony 

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Helping seriously ill children, all together. All information about this, is posted on my blog

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4 REPLIES 4
Highlighted
Hall of Fame Master

Re: CISCO 2851 Router

You do not need to install anything to make calls on this router as CME is built into IOS, you need to enable it with ‘telephony-service’.  You can then connect analog phones to these FXS ports.

View solution in original post

Highlighted
Beginner

Re: CISCO 2851 Router

I precisely mean if I have to call outside using the pstn line ? 

 

Highlighted
Contributor

Re: CISCO 2851 Router

Hi, FXS port is intended for connect analog phone instead FXO which intended for connect PSTN analog line.

But You need PVDM for work with analog telephony 

--------------------------------------------------------------------------

Helping seriously ill children, all together. All information about this, is posted on my blog

View solution in original post

Highlighted
Hall of Fame Master

Re: CISCO 2851 Router

No, as pointed out you need FXO ports for that, which for 2800 router you can get for few $ on eBay along with PVDM2-8 that you will need.

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