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DT200A
DT200D
PTT200
Applications
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FAQs
Quick Installation
Advanced Settings
Most-Frequent 4G / LTE Issues
T-Mobile DIGITS Integration
AT&T Office@Hand Integration
Emergency Location
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Contents
Quick Installation
Where is the SIM status icon?
How can I check signal bars?
Which port is for Ethernet?
What ports are on the back?
Is there an external antenna port?
How do I add a custom APN?
How do I set the APN?
Can I use both Ethernet and 4G?
Do I need Ethernet if using 4G?
Where is the Reboot button?
How do I log in to the web interface?
How do I mount the phone on a desk?
Do they have a battery?
How do I power the phone?
What’s the default network mode?
Do they both have Wi-Fi?
How do I insert the SIM?
What networks do they support?
Do both models use a SIM card?
What’s included with DT-200A and DT-200D?
Advanced Settings
How often does auto-provision check for updates?
Can I change the admin password?
What is the default admin password?
How do I upgrade firmware?
What file name formats can be used for static config?
What transfer protocols are supported?
What’s the auto-provision priority?
What SIP transports are supported?
How do I configure a SIP line manually?
How do I record a personal greeting?
How can I check voicemail messages?
How do I set voicemail on DT-200D?
How do I set voicemail on DT-200A?
Can I enable Do Not Disturb (DND)?
How do I set call forwarding?
Most-Frequent 4G / LTE Issues
“Negotiating IP” stuck.
How to export debug logs?
Device won’t boot.
SIP not registering (DT-200D).
Data works but no voice (DT-200A).
DT-200D drops VoIP calls.
DT-200A drops VoLTE calls.
Network not registered?
Wrong APN?
No signal bars visible?
SIM not recognized?
T-Mobile DIGITS Integration
What Android version is needed?
What data speed does DIGITS require?
How to transfer calls between devices?
Can multiple DT-200s use one DIGITS account?
How to log out of DIGITS?
How to sync contacts?
How to enable Do Not Disturb in DIGITS?
Do messages sync across devices?
Can I make conference calls in DIGITS?
Do I need E911 for each DIGITS line?
What network modes are available?
How to stop DIGITS access completely?
How to remove a user?
How to share a line?
How to register DT-200D (Wi-Fi mode)?
How do I register DT-200A to DIGITS?
Do I need a T-Mobile ID?
How many numbers and devices can be linked?
Which phones support DIGITS?
What is DIGITS?
AT&T Office@Hand Integration
Where to get support?
What codecs are supported?
Does it support TLS security?
Where to see call history?
Can it use Wi-Fi fallback?
Can DT-200A use 4G for Office@Hand?
How to configure auto-attendant?
How to set call forwarding?
How to set voicemail?
Can DT-200D use Office@Hand?
Why use DT-200A for Office@Hand?
What is AT&T Office@Hand?
Emergency Location
What’s the best practice for E911?
Who is responsible for E911 accuracy?
Will the system remind me to update?
How does DT-200D handle E911 for VoIP?
How does Office@Hand handle E911?
What if the office relocates?
How to handle multiple SIMs?
Does E911 work offline?
How to verify address accuracy?
Can I edit E911 online?
How does E911 work for DIGITS lines?
What if I enter the wrong address?
How to update after moving?
How to enter the E911 address?
When must I register E911?
What is E911?
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FAQs
T-Mobile DIGITS Integration
Do messages sync across devices?
Yes — texts and media sync on all linked devices.
