HLR Profile
Use the HLR Profile tab to manage calling, roaming, and view APN features. Atlas Troubleshooting Dashboard: In Atlas, click the Troubleshooting tab > click Tech Tools > click HLR.
SIM Status
Use the HLR Profile > SIM status to determine if they are causing problems registering on the network.
| Item | Definition |
| HLR ID & Status | Shows actual HLR Location and a button for SIM card status. Status may be:
|
| SIM Type | Shows what services SIM card is compatible with.
(If you want to determine if the customer has a physical SIM or eSIM and find a SIM release version, use the SIM/eSIM Status Tool.) |
| IMS Status | Shows the IMS status for services such as Wi-Fi Calling. If a red error message displays, IMS registration may be missing due to no signal or being connected to UMTS/GSM. Troubleshoot in The Fix for signal issues. |
| 5G NSA Status | Shows 5G NSA connectivity status. Status may be:
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| 5G SA Status | Shows 5G SA connectivity status. Status may be:
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| LTE Status | Shows if customer has LTE registration. |
To identify and update HLR Profile, follow these steps:
- On the HLR Profile, look under SIM Status.
- If the SIM status does not match the billing system, reactivate the SIM card by resending to switch.
To determine if the customer has the correct IMS settings for Wi-Fi Calling to work as expected:
- On the HLR Profile, check the SIM Status for:
- SIM Type includes IMS
- IMS Status is Registered
- Follow Wi-Fi Calling errors for REG90 if it does not display as Registered.
Call Forwarding for Circuit Switch Data
Call Forwarding for Circuit Switch Data is no longer a supported technology. For more information, see Retired data features.
Network Features
Access HLR profile through Troubleshooting Dashboard, select Tech tools> HLR > Network Features to determine customers are provisioned for the right features. They will not be able to use features that are not provisioned.
| Item | Definition |
Receive Short Messages Send Short Messages |
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| Call Hold | Allows the phone to place a call on hold, in order to answer a second call without disconnecting the first. |
| Call Waiting | Allows notification beeps when a second call comes in, and allows the phone to answer the second call. |
| Conference Calling | Allows the phone to call two numbers simultaneously. |
| Show Incoming Caller Id | Allows the phone to show a caller's mobile number when receiving incoming calls. |
| Show Outgoing Caller Id | Allows recipients to see the customer's mobile number when making calls.
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| Restrict Incoming Calls (Read Only) |
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| Restrict Outgoing Calls (Read Only) |
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| Calling Name Delivery | Shows the caller's name on the calling party's phone. This is similar to caller ID, except that the calling party's name is displayed along with (or instead of) the calling number. |
| International Calling | Indicator to determine if customer has stateside international calling. This affects the customer's ability to call, but not to roam. The Restrict Incoming Calls and Restrict Outgoing Calls fields will be populated and are read only.
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To verify network feature provisioning, follow these steps:
- On the HLR Profile, look under Network Features.
- Review the toggles to identify if the features are provisioned or not.
- If they are included in billing, they should show as on in the HLR Profile.
- If they are not matched, toggle them in billing.
- File a ticket. Atlas Troubleshooting Dashboard: If a troubleshooting flow advises you to check the Network feature and there is a mismatch, then you can file a ticket from the “Last Resort” of that flow
Current Location
Use the HLR Profile > Current Location to determine where the customer is currently registered and if they may have call failure due to improper registration.
| Item | Definition |
| Current Connection | Shows what network technology the customer is connected to: 2G, 3G, 4G, LTE, 5G NSA and 5G SA. |
| VLR | Local database, storing for one or several MSCs the data concerning visiting subscribers, for the time they are registered under the MSC. |
| MSC | Routes calls and messages for an end-to-end connection. Also helps manage roaming by approving or rejecting the voice call. |
| SGSN | This is location information that communicates with the biller to confirm the device can be used on the network. It confirms the customer at some point had a connection to the network and may not be a current connection displayed. |
| MME | MME permits connection to the LTE and 5G NSA network and is the equivalent to the SGSN field. The MME Field can be used to determine whether or not the customer has an LTE connection. |
| MS Purge | When MS Purge is "True" it means devices have not recently registered on the T-Mobile network in the last 24 hours. See steps below. This is not an issue with the account or HLR. It can happen if the device is turned off or outside of a coverage area. |
| Is the customer roaming? | Click GET ROAMING STATUS to determine the current roaming status. Click REFRESH to update it. |
Reconcile
If troubleshooting instructs, click Reconcile.
- Reconcile resets a device's registration to the network. It does not clear LTE location information.
- Customers need to restart their device to clear the location information. Otherwise, it reconnects so fast they won’t see everything disappear.
- Reconcile is added to the appropriate fix flows in the order in which it should be completed.
- Once completed, another Reconcile cannot be initiated for 5 minutes. The timer is enforced in the Troubleshooting Fix Flows and T-Mobile ID Tool, no matter the tool used for the initial request.
For more information see Reconcile or Reset (Resend to Switch): Samson & Atlas.
MS Purge
MS Purge is no longer a supported technology
Call Forwarding for Voice
Assisted channels can no longer manage Call Forwarding for customers. Customers must use Cell Services USSD Codes to self service Call Forwarding.
| Item | Definition |
| Unconditional | Forwards all to the specified number, without ringing the phone. |
| If Busy | Forwards calls to specified number when the phone is busy. |
| No Reach | Forwards calls to specified number when the phone is off. |
| No Reply | Forwards calls to specified number when the call is not answered or declined. |
| Seconds to wait |
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GPRS APNs
Use the HLR Profile > GPSR APNs to check the account is provisioned with the right data feature and fix data connectivity problems.
To view the GPRS APNs, follow these steps:
- View the customer's profile in Samson.
- On the HLR Profile, look under GPRS APNs.
- Check that the selected APNs match with the information in Samson.
- If APNs need to be refreshed, perform a reconcile.
Roaming
Use the HLR Profile > Roaming to determine if the account has the right roaming class.
| Item | Definition |
| CAMEL International | Allows international roaming for T-Mobile Prepaid |
| CAMEL National | Allows national roaming for T-Mobile Prepaid |
| Camel USA | Allows US domestic roaming. Does not allow international roaming |
| Domestic Roaming Barred | Does not allow domestic roaming. Allows international roaming |
| International | Allows US domestic roaming and international roaming |
| USONLY | Allows US only. Does not allow international roaming |
| Voicestream and Mexico | Does not allow domestic roaming. Allows roaming in Mexico |
| US CANADA | Allows US domestic roaming and roaming in Canada. Does not allow Mexico or international roaming |
| US CANADA MEXICO | Allows US domestic roaming and roaming in Mexico and Canada |
| US Domestic and Mexico | Allows US domestic roaming and roaming in Mexico |
| Voicestream | Does not allow domestic roaming or international roaming |
To change the roaming class, follow these steps:
- Check the class of service in the HLR matches the account in Samson.
- On the HLR Profile, look under ROAMING.
- Check that the class of service in the HLR matches the account in Samson.
Note: Mobile Broadband (Postpaid, PIA, SCNC, NCC) roaming/calling features must only be changed if the field has no entry. - File a ticket.
- Atlas Troubleshooting Dashboard: If a troubleshooting flow advises you to check the Roaming feature and there is a mismatch, then you can file a ticket from the “Last Resort” of that flow
- Escalated cases only: You can escalate to your Team Manager or CEC-Operations Support. They have access to update the field without a ticket.
Camel
With NPE conversion, Camel is no longer a supported technology. As a result, Camel may not show correctly as it’s not used by the core network.