In step 6, you get all the resources and filter by the selected SIM card to find out the corresponding ID. For the PATCH operation, you need to know the ID of the selected SIM card.
Ericsson Inc.
Original Message:
Sent: Feb 26, 2025 10:47
From: Hajer DAOUD
Subject: API for find free MSISDN resources
Hi Yurii,
It is clear thank you. And this is what we will use for our use case reservation TMF 639.
In the sequence diagramme you shared the step "6" TMF 639 GET /resource is to double check that the selected resource is still available before reservation?
Thank you
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Hajer DAOUD
Sofrecom Tunisie
Original Message:
Sent: Feb 26, 2025 10:36
From: Yurii Yushchak
Subject: API for find free MSISDN resources
Hi Hajer!
Have a look at the TMFS008 Use Case: Service and Resource Order Management for Postpaid Mobile Subscribers v3.4.0:

As you can see from the diagram above, in step 8, the number is reserved using TMF639 Resource Inventory Management API:
TMF639 Resource Inventory Management
PATCH /resource
(SIM card, resourceStatus="reserved")
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Yurii Yushchak
System Manager
Ericsson Inc.
Original Message:
Sent: Feb 26, 2025 09:24
From: Hajer DAOUD
Subject: API for find free MSISDN resources
Hi, thank you for reply
After searching for the available list of MSISDN numbers via the TMF 685 API, the selected number is reserved using the TMF 639 or TMF 716 API. Is that correct?
Best regards
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Hajer DAOUD
Sofrecom Tunisie
Original Message:
Sent: Feb 21, 2025 04:29
From: AHMED BENAISSA
Subject: API for find free MSISDN resources
Hello Hajer,
Please have a look on TMF685 , it looks most appropriate API to be used in your case as per ODA use case TMFS008
Thanks
Ahmed
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AHMED BENAISSA
EITC (DU)
Original Message:
Sent: Feb 20, 2025 10:31
From: Hajer DAOUD
Subject: API for find free MSISDN resources
Hello,
Which API is recommended to use to find free MSISDN resources? TMF 716 Resource Reservation or TMF 639 Resource Inventory
Management?
The uses case is during the order capture process, give the opportunity to customer to select an MSISDN number from the list of free MSISDN numbers.
Best Regards
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Hajer DAOUD
Sofrecom Tunisie
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