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How to transfer the PSTN number by routers?

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parazhang

parazhang

MIS
May 13, 2003
42
US
A department of my company has two PSTN phones with the numbers +82402510086 and +82402510087,but now they moved to another place,and they want to keep their phone numbers.
That is to say,I want to link the two telephone lines to one of the cisco routers and then connect to their new office through internet.
Now I have some cisco 2600 and 3600 routers,and some NM-2V with FXS and FXO interface cards.
Could there be someone please tell me wheather it is possible to keep the former numbers with my devices on-hand, and how?

Thanks indeed.
 
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