[GSA]: 150 MNOs Have HD Voice Service

GSA updated its MNO stats:

"150 mobile operators in 87 countries have launched HD voice service enabled by W-AMR technology:

• 128 deployments are on 3G/HSPA networks
• 17 deployments are on 2G/GSM networks
• 40 deployments are on LTE networks (VoLTE)" 

See "150 mobile operators launched HD voice service in 87 countries; including 40 VoLTE deployments" - here.