VDSL and ADSL cables ( connecting the telephone to the router) are the same.
As a temporary repair, cut out the chewed bit, strip the insulation off the wires in the two pieces. Twist the copper wires of the same colours in each piece together. Insulate each individual wire - Sellotape if you don't have insulation tape. Try out.
It may not work quite as well as it use to - but may avert meltdown.
On the other hand if you have a spare wired phone, the cable for that (if it unplugs from the base) may also work.
