Moving from two ISPs to one

Current setup:  
Two ISPs, each has their own DSL modem and then that is connected to  its individual router.  Each router has a couple/three  devices connected to it and each forms it small network

Future requirement:
Just upgraded one of the ISPs to a 10MB connection so we want to cancel the other ISP (save money!!)  How do we connect the the system?  we need both routers ... The first (TP-LINK r460) one has a fixed IP address (this cannot be changed for the time being and it provided by the new ISP connection) which serves as a link to video systems etc.  The other router (Linksys RT-31P2) is a combined router-VOIP/phone device (supplied by the VOIP provider, so it is required also as it is our telephony connection).  We also would like to have all the devices networked!!

How do we configure the setup?  we tried with a switch (D-Link DES-1008D) ...but messed up
ammoelieAsked:
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blousteauCommented:
From what you described above here is one solution that should work.

Get an additional Static IP from your ISP.
Set your DSL Modem to ethernet bridged mode, your ISP will be able to help you for your model.
Install your switch.
Plug in the VOIP router
Plug in the other router, and assign it the additional Static IP.
Then choose the one you want your PC's to use and use its internal IP fo for their gateway.
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ammoelieAuthor Commented:
Thanks for the reply

We could not get an additional IP ... extra costs (we are trying to save)

Tried various combinations unsuccessfully ... turned to a local IT company and they came with a switch and somehow did it ... stange set-up though with the switch between the two routers!!!???  Now all PCs are networked and are on the new ISP with the faster line

Thanks
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