# Android Tunneler UDP

**URL:** <https://openziti.discourse.group/t/android-tunneler-udp/1543>\
**Category:** Tunneler Apps\
**Created:** [August 23, 2023, 1:50pm UTC](https://openziti.discourse.group/t/android-tunneler-udp/1543 "2023-08-23T13:50:58Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![nwfava](https://avatars.discourse-cdn.com/v4/letter/n/a183cd/32.png) [@nwfava](https://openziti.discourse.group/u/nwfava)\
**Post date:** [August 23, 2023, 1:50pm UTC](https://openziti.discourse.group/t/android-tunneler-udp/1543/1 "2023-08-23T13:50:58Z")

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Hi All,

I've been working on getting a softphone on Android working across Ziti and I've noticed an issue with UDP.

I have a voip service in Ziti for SIP and RTP through a private router to a PBX and everything is working fine from a laptop with the desktop-edge-win tunneler installed, I can register, make calls, have two way audio, everything is fine.

The issue appears when I try to do the same thing from Android. My Android identity has access to the same service as my laptop for voip, however I can't register a UDP extension. If I change the extension to register as TCP then I'm able to register but there is no audio, (RTP being sent as UDP).

I looked at the logs on my Android tunneler and I noticed this message kept repeating when I was trying to register as UDP:

```auto
08-23 09:22:03.881 22911 22973 W routing : UDP services are not currently supported [UDP Header (8 bytes)]
08-23 09:22:03.881 22911 22973 W routing : Source port: 34020 (unknown)
08-23 09:22:03.881 22911 22973 W routing : Destination port: 5060 (unknown)
08-23 09:22:03.881 22911 22973 W routing : Length: 51 [bytes]
08-23 09:22:03.881 22911 22973 W routing : Checksum: 0x24c3

```

Is UDP not currently supported on the Android tunneler, or is there something else I can try? Thanks in advance.

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**Author:** ![TheLumberjack](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/thelumberjack/32/113_2.png) [@TheLumberjack](https://openziti.discourse.group/u/TheLumberjack)\
**Post date:** [August 23, 2023, 4:14pm UTC](https://openziti.discourse.group/t/android-tunneler-udp/1543/2 "2023-08-23T16:14:35Z")

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Hi @nwfava, welcome to the community and to OpenZiti!

I belive there's no support for UDP at this moment for Android. @ekoby can you confirm, please?

As for "something else to try", if it has to be "for Android" I'm not sure. I've not done a lot of Android development and I don't know much about using native C code, but would you be able to use the `ziti-sdk-c` inside Android via FFI? @ekoby probably knows that answer too. But maybe that'd work? (have I "waved my hands" enough to indicate this is just a guess? 🙂 I hope so...)

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**Author:** ![nwfava](https://avatars.discourse-cdn.com/v4/letter/n/a183cd/32.png) [@nwfava](https://openziti.discourse.group/u/nwfava)\
**Post date:** [August 23, 2023, 5:33pm UTC](https://openziti.discourse.group/t/android-tunneler-udp/1543/3 "2023-08-23T17:33:23Z")

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Hi @TheLumberjack, thanks for the welcome!

I was afraid that might be the case when I saw that in the logs but I just wanted to double check.

For the "something else to try" I was hoping more for like some settings or config change haha. Thanks for the idea though, as fun as it sounds to build a ziti-fied Android sip client I don't think I have the room for a new project right now.

Do you know if there's plans on adding UDP support down the road?

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**Author:** ![TheLumberjack](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/thelumberjack/32/113_2.png) [@TheLumberjack](https://openziti.discourse.group/u/TheLumberjack)\
**Post date:** [August 23, 2023, 5:34pm UTC](https://openziti.discourse.group/t/android-tunneler-udp/1543/4 "2023-08-23T17:34:59Z")

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I actually just heard back from @smilindave26 that @ekoby was planning to implement it soon, yes.

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**Author:** ![nwfava](https://avatars.discourse-cdn.com/v4/letter/n/a183cd/32.png) [@nwfava](https://openziti.discourse.group/u/nwfava)\
**Post date:** [August 24, 2023, 1:21pm UTC](https://openziti.discourse.group/t/android-tunneler-udp/1543/5 "2023-08-24T13:21:49Z")

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Ok great, thanks for the update. I'll keep an eye out for the new releases.

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**Author:** ![ekoby](https://yyz2.discourse-cdn.com/free1/user_avatar/openziti.discourse.group/ekoby/32/14_2.png) [@ekoby](https://openziti.discourse.group/u/ekoby)\
**Post date:** [August 25, 2023, 2:19pm UTC](https://openziti.discourse.group/t/android-tunneler-udp/1543/6 "2023-08-25T14:19:43Z")

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issue is here: [Add support for UDP intercepts · Issue #176 · openziti/ziti-tunnel-android · GitHub](https://github.com/openziti/ziti-tunnel-android/issues/176)
