User manual

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Your Sonim phone comes with pre-loaded EPTT
application.
AT&T SIM Subscription
The SIM can be provisioned with any of the below
mentioned variants:
For subscription plans, contact the Service provider.
Variant SIM Provisioning
#1 SIM provisioned with PHONE plan:
• No EPTT service
• The user will have general
Internet access
#2 SIM provisioned with PHONE and
EPTT APNs with EPTT rate plan:
• The user will have general
Internet access and EPTT
service.
#3 SIM provisioned with EPTT APN only:
• No Internet access allowed
• Only EPTT service
Select the EPTT button on the side of the XP5 phone or
select the EPTT icon on the panel of the Home screen.
Activating EPTT Using Wi-Fi
1. A screen is displayed prompting to activate EPTT
service using Wi-Fi connection when cellular data
network is unavailable.
Installing and Accessing Enhanced Push-To-Talk Services