What is IMS Service? Understand IMS Service on Mobile Device

What is IMS service and How to Troubleshoot common issues related to IMS service on your smartphone? All the modern Smartphone especially Samsung Smartphones use IMS services to send and receive calls over the network. Find all details about IMS services including, definition, function, uses and troubleshooting IMS service on your Android mobiles.

IMS Service

What is IMS Service?

The IMS Service stands for IP Multimedia Subsystem Service. IMS services allow the Android software of Android smartphones such as Samsung S9, S10, S8 Samsung Note and other 4G Smartphones to work properly with the carrier-provided communication app.

IMS helps to make calls and send SMS to be delivered via an IP network. Sometimes, this service tends to fail to work which can display the error message Unfortunately, IMS Service Has Stopped.

In other words; IMS is a general-purpose, open industry standard for establishing voice and multimedia communications over packet-based IP networks or VoIP.

It is a core network technology, that can serve as a low-level foundation for technologies like Voice over IP (VoIP), Push-To-Talk (PTT), Push-To-View, Video Calling, and Video Sharing.

However, IMS is also used for communication on LTE networks.

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What is the function of IMS Service?

IMS core elements are primarily responsible for handing (routing) Session Initiation Protocol (SIP) traffic, as the signalling mechanism of choice for public communications network infrastructures.
The Diameter protocol is also widely employed, within the IMS core, for policy control and billing.

Why do we need IMS Service?

Prior to modern smartphones, IMS was a main feature or function to establish the connection between the carrier and mobile carrier app including calls and SMS.

But, now with smart technology, all the modern network provider companies are equipped with an advanced network system that is not dependable on your Smartphone’s IMS Services.

Still, the Smartphone manufacturer like Samsung prefers to provide the IMS service as pre-installed services on their devices.

Difference between IMS and VoLTE

What is the difference between IMS and VoLTE?

The fundamental difference of VoLTE compared to VoIP is that VoLTE requires a QoS component. Voice packets for VoIP get sent along with Internet nodes and are treated no differently than any other data.

While the VoLTE uses IMS and a separate radio frequency to help maintain the quality of the VoLTE transmission.

Read Also: How to Fix IMS registration status says ‘Not registered’

Unfortunately, IMS Service Has Stopped

“Unfortunately IMS Service Has Stopped”, is a quite common IMS service error on Samsung mobiles like Samsung S6, Samsung S7, Samsung S8, and other Samsung mobiles.

However, there is not a certain reason or explanation to the factor causing your Android to display “Unfortunately IMS Service Has Stopped”, but there is still a software failure or newly installed app that may be the reason.

How to Fix Unfortunately IMS Service Has Stopped
How to Fix Unfortunately IMS Service Has Stopped

As there is not a single explained reason behind Android causing the “Unfortunately IMS Service Has Stopped” error. It’s obvious, there will not be a simple and single solution to fix the IMS service error on Android smartphones.

Luckily, you can read and apply some fixes to solve the Unfortunately IMS Service Has Stopped error on your Samsung and other Android smartphones.

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How to Fix Unfortunately IMS Service Has Stopped

As we discussed above, there are several reasons and solutions to fix the IMS error. If your Samsung phone displays the “com.sec.imsservice has stopped” error message frequently, you may follow the steps below to solve the IMS service error permanently.

  1. Check any recently downloaded app that may cause the problem
  2. Restart your Android.
  3. Clear Android message cache.
  4. Wipe cache partition.

Check a complete guide here: How to Fix Unfortunately, IMS Service Has Stopped


  • I am George, the mind behind Fixyourandroid.com. My mission with this platform is to offer clear, practical insights into smart devices, VR, and Android technology.

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