# VoLTE voice calling availability on Sierra Wireless modules **URL:** \ **Category:** IoT Modules\ **Created:** [February 25, 2020, 4:20pm UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501 "2020-02-25T16:20:20Z")\ **Posts on this page:** 15\ **Page:** 1
**Author:** ![ramspirent](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@ramspirent](https://forum.sierrawireless.com/u/ramspirent)\ **Post date:** [February 25, 2020, 4:20pm UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/1 "2020-02-25T16:20:21Z")
This is my general question to the community - Is there any module from Sierra which could support VoLTE for US operators? ---
**Author:** ![jerdung](https://avatars.discourse-cdn.com/v4/letter/j/82dd89/32.png) [@jerdung](https://forum.sierrawireless.com/u/jerdung)\ **Post date:** [February 26, 2020, 4:29am UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/2 "2020-02-26T04:29:01Z")
Hi @ramspirent Below is list of modules which support VoLTE for US operators. Also you can refer official link from Sierra for more information and purchase [https://www.sierrawireless.com/products-and-solutions/embedded-solutions/iot-modules/](https://www.sierrawireless.com/products-and-solutions/embedded-solutions/iot-modules/) Please help to tick **“Solution”** if your question is answered Thanks | Module | Region (Carrier) | Bands | | --- | --- | --- | | **LTE-M(CAT-M1)/NB-IoT(CAT-NB1)** | | | | HL7800 LPWA Module | AT&T, docomo, KDDI, Sprint, Telstra, Verizon, Vodafone, Sierra Wireless | B1, B2, B3, B4, B5, B8, B9, B10, B12, B13, B14, B17, B18, B19, B20, B25, B26, B27, B28, B66 | | HL7802 LPWA Module | Planned: AT&T, Verizon, Vodafone | B1, B2, B3, B4, B5, B8, B9, B10, B12, B13, B14, B17, B18, B19, B20, B25, B26, B27, B28, B66 | | **4G CAT-1** | | | | RC7611-1 IoT Module | Americas (Planned: AT&T, T-Mobile, Verizon, Sprint, Sierra Wireless) | LTE: B2, B4, B5, B12, B13, B14, B25, B26, B66, B71 | | WP7611-1 IoT Module | Americas (Planned: Verizon, AT&T, T-Mobile, Sierra Wireless, Sprint (data only)) | LTE: B2, B4, B5, B12, B13, B14, B25, B26, B66, B71 | | HL7648 IoT Module | Americas (AT&T) | LTE: B2, B4, B12 | | **4G CAT-4** | | | | RC7611 IoT Module | Americas (Planned: AT&T, T-Mobile, Verizon, Sprint, Sierra Wireless) | LTE: B2, B4, B5, B12, B13, B14, B25, B26, B66, B71 | | WP7610 Smart Module for First Responders | Americas (AT&T - FirstNet, Verizon, Sierra Wireless) | LTE: B2, B4, B5, B12, B13, B14, B17, B66 | | WP7611 IoT Module | Americas (Planned: Verizon, AT&T, T-Mobile, Sierra Wireless, Sprint (data only)) | LTE: B2, B4, B5, B12, B13, B14, B25, B26, B66, B71 | | HL7588 IoT Module | Americas (AT&T, Verizon, Planned: Sierra Wireless) | LTE: B2, B4, B5, B13, B17 | ---
**Author:** ![ramspirent](https://avatars.discourse-cdn.com/v4/letter/r/958977/32.png) [@ramspirent](https://forum.sierrawireless.com/u/ramspirent)\ **Post date:** [March 2, 2020, 6:20pm UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/3 "2020-03-02T18:20:37Z")
Thanks jerdung! I see the as per the data sheet RC7611 is a “planned” device for Sprint , AT&T, TMO , VZW and Sierra Wireless. What does the planned imply ? Does this mean Sierra has tested VoLTE calls on Sprint network before releasing RC7611? Why is Sierra Wireless listed as one of the operator? Thanks ---
**Author:** ![Vianney](https://avatars.discourse-cdn.com/v4/letter/v/71e660/32.png) [@Vianney](https://forum.sierrawireless.com/u/Vianney)\ **Post date:** [March 3, 2020, 3:49am UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/4 "2020-03-03T03:49:59Z")
Hi @ramspirent, “Planned” means that modules are under verification and validation. They will be delivered in the future Let feel free to share if you have any concern. Please tick **Solution** if your question is answered Thanks ---
**Author:** ![I\_AGREE\_BUTTON](https://avatars.discourse-cdn.com/v4/letter/i/f1d935/32.png) [@I\_AGREE\_BUTTON](https://forum.sierrawireless.com/u/I_AGREE_BUTTON)\ **Post date:** [April 5, 2020, 12:10am UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/5 "2020-04-05T00:10:07Z")
Hi Does all Modules Support Phone Calls over the Cellular Network here in Europe? What I looking for is a Module who allow me to make Phone Calls next to an Data Stream. Thanks ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [April 7, 2020, 4:56pm UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/6 "2020-04-07T16:56:09Z")
@I_AGREE_BUTTON, Generically speaking yes all of the modules allow you to make a voice call over 2G/3G but VoLTE is a bit different and requires setting up, WP7607 allows it as will the upcoming RC series. Regards Matt ---
**Author:** ![iitr\_saad](https://avatars.discourse-cdn.com/v4/letter/i/b2d939/32.png) [@iitr\_saad](https://forum.sierrawireless.com/u/iitr_saad)\ **Post date:** [June 4, 2020, 4:33pm UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/7 "2020-06-04T16:33:22Z")
@mlw Does this also mean that WP7702 will be able to supports voice call over 2G Fallback? Thanks ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [June 5, 2020, 7:52am UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/8 "2020-06-05T07:52:47Z")
@iitr_saad No WP7702 is a data only product as will all LPWA units based on QC. Regards Matt ---
**Author:** ![iitr\_saad](https://avatars.discourse-cdn.com/v4/letter/i/b2d939/32.png) [@iitr\_saad](https://forum.sierrawireless.com/u/iitr_saad)\ **Post date:** [June 5, 2020, 11:55pm UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/9 "2020-06-05T23:55:09Z")
Thanks @mlw. By QC, do you mean Qualcomm? ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [June 8, 2020, 6:19am UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/10 "2020-06-08T06:19:47Z")
@iitr_saad, yes I mean Qualcomm. ---
**Author:** ![aatw76](https://avatars.discourse-cdn.com/v4/letter/a/b9e5f3/32.png) [@aatw76](https://forum.sierrawireless.com/u/aatw76)\ **Post date:** [April 1, 2022, 2:23pm UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/11 "2022-04-01T14:23:43Z")
@mlw do you have a link to where this VoLTE setup resides? We have a hunch this is causing us issues int he US currently where VoLTE is now only supported for some networks in some areas as the change their networks around but we have yet seen a good guide on everything that needs to be enabled to ensure proper VoLTE support, specifically with AT&T. Cheers ---
**Author:** ![mlw](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/mlw/32/3706_2.png) [@mlw](https://forum.sierrawireless.com/u/mlw)\ **Post date:** [April 1, 2022, 3:41pm UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/12 "2022-04-01T15:41:24Z")
@aatw76 Not really, if a unit of ours is VoLTE certified with AT&T then the units configuration as shipped will confirm to what is required, typically the carrier will set CID 2 with an APN of IMS which the UE will then connect to with its IMS client. The only way to tell if this has completed correctly is using the at!gstatus? command as that gives you an IMS state, there also isn’t any way to modify or play with it sensibly without messing it up. Regards Matt ---
**Author:** ![aatw76](https://avatars.discourse-cdn.com/v4/letter/a/b9e5f3/32.png) [@aatw76](https://forum.sierrawireless.com/u/aatw76)\ **Post date:** [April 6, 2022, 2:58pm UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/13 "2022-04-06T14:58:50Z")
Appreciate the reply @mlw it does look like that is the cause as we were able to get IMS enabled by putting the card in a handset make a call, then putting in our device and IMS was enabled for a short period before the network must have removed again for that particular card. Cheers S ---
**Author:** ![dominik.hartloff](https://avatars.discourse-cdn.com/v4/letter/d/258eb7/32.png) [@dominik.hartloff](https://forum.sierrawireless.com/u/dominik.hartloff)\ **Post date:** [September 14, 2022, 12:15pm UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/14 "2022-09-14T12:15:57Z")
Hi, are there any MC/EM cards ready for VoLTE for the european market, yet? ---
**Author:** ![jerdung](https://avatars.discourse-cdn.com/v4/letter/j/82dd89/32.png) [@jerdung](https://forum.sierrawireless.com/u/jerdung)\ **Post date:** [September 15, 2022, 4:40am UTC](https://forum.sierrawireless.com/t/volte-voice-calling-availability-on-sierra-wireless-modules/19501/15 "2022-09-15T04:40:53Z")
Hi @dominik.hartloff , Currently, the EM / MC module does not support the VoLTE feature, you can refer to the types of modules that support VoLTE at the link below: > **[IoT Modules](https://www.sierrawireless.com/iot-modules/#ModuleFinder)** > > The world's number one cellular module vendor provides simple, scalable, and secure ways to add wireless to any IoT or M2M system with 5G, LPWA, 4G LTE, 3G and 2G solutions. Thanks,