Will volte work with an Australian model of Samsung 8 plus or does it need Optus software



@mickmcmahon6730 our VoLTE FAQ page mentions that you'll need an Optus supplied VoLTE compatible handset.


The following Samsung devices, when purchased from Optus on a postpaid plan, are supported by the Optus VoLTE (4G voice) service. These devices, noted by their ‘Build number’ also support emergency calls to Triple Zero over the 4G Network.


  • Samsung Galaxy Note 8 (Emergency Calls Build Number NMF26X.N950FXXU1AQH4)
  • Samsung Galaxy S8 (Emergency Calls Build Number NRD90M.G950FXXU1AQC9)
  • Samsung Galaxy S8 Plus (Emergency Calls Build Number NRD90M.G955FXXU1AQC9)
  • Samsung Galaxy S7 (Emergency Calls Build Number NRD90M.G930FXXU1DQBH)
  • Samsung Galaxy S7 Edge (Emergency Calls Build Number NRD90M.G935FXXU1DQBH)
  • Samsung Galaxy S6 (Emergency Calls Build Number NRD90M.G920IDVU3FQH3)
  • Samsung Galaxy S6 Edge (Emergency Calls Build Number NRD90M.G925IDVU3FQH3)
  • Samsung Galaxy S6 Edge Plus (Emergency Calls Build Number NRD90M.G928IDVU3CQF3)
  • Samsung Galaxy Note 5 (Emergency Calls Build Number NRD90M.N920IDVU3CQF3)
  • Samsung Galaxy A5 2017 (Emergency Calls Build Number MMB29K.A520FXXU1A


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Just to confirm handset doesnt have to be optus supplied.Purchased S9 from Harvey Norman put optus sim in and VoLTE and Vowifi worked straight away. XSA software



Agreed... Optus VoLTE has worked fine with various Galaxy phones that run XSA firmware and not Optus-supplied.

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