The best replacement for vonage is skype.

The best alternatives to vonage are rated as following:
★★★★★  skype
★★  ooma
★★  verizon
★★  magic jack
★  magicjack
★  lingo
★  at&t
★  basic talk
★  att
★  allvoi
★  packet8
★  callvantage
  time warner
  unovon
  sunrocket
  nettalk
  ringcentral
  viber
  xfinity voice
  voipo
  google voice
  itp
  nextiva
  comcast digital voice
  phone service
  landline
  magicjack plus
  magic jack plus
  t-mobile
  phone power
  skype quality
  basictalk
  optimum voice
  comwave
  voip
  earthlink
  primus
  digital phone
  skype phone
  other voip
  tmobile
  comcast voice
  voicewing
  viatalk

Your alternative for vonage is not listed? Suggest!
Speaking about vonage, one probably shouldn't forget about dsl.

Other search terms related to vonage and their ratings are:
★★★★★ dsl
★★ asterisk
★★ uverse
★ satellite internet
★ tivo
★ adt
★ directv
★ alarm system
★ direcway
fios
att dsl
motorola cordless
multiple phones
fax machine
dish network
You have in mind a companion for vonage and it is not yet here? Propose!



Google Trends

Scale is based on the average worldwide traffic of vonage in all years. Click on graph for more.
vonage
skype
ooma