Telecom rhymes with:
telekom, telekom, telekom, belgacom, sodecom, stratacom, telekom, viacom, acecomm, beckom, belgacom, careercom, ficom, francom, genicom, globcom, incom, intelcom, metcom, micom, millicom, neukom, omnicom, opcom, secom, sodecom, stratacom, syncom, telekom, verticom, viacom, wascom
Telecom sounds like:
talcum, talisman, talkin, talkin', tallahassean, talsma, telekom, telxon, theologian, tilghman, tillison, tillson, tilson, toalson, tolleson, tollison, tolsma, tolson