The adsl/other combination did-it-all-in-one package devices were not usually configurable to provide another function. In fact the needed WAN jack is likely to be absent.
as a cost saving measure, i have just shifted from adsl to broadband cable internet combined with voip to replace my isdn telephone service provider.
the new voip modem (motorola surfboard sbv5120e for the new connection was delivered yesterday and as i was setting up the hardware, i realized that i do not have a broadband cable router to connect all the computers on my home network to the internet. in my current internet/lan setup, i have a multiuser adsl gateway (thomson speedtouch adsl router isdn modem. it connects to the adsl splitter & has 4 ethernet ports to which connect the four computers (an imac g5 running on mac os x 10.4.5, a powerbook g4, also mac osx 10.4.5, a pentum 4 533a pc running on windows xp and an old pentium 3 toshiba notebook also windows xp for use of occasional houseguests) on the network.
my question is whether with a few tweaks, the adsl router can be converted to function as a broadband cable router. if so, how can it be done? i have already written for thomson technical support but so far no answer.