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# Unlicensed Mobile Access (UMA)
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Unlicensed Mobile Access (UMA) technology provides access to GSM and GPRS mobile services over unlicensed spectrum technologies, including Bluetooth and 802.11.
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## History
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In order to promote the widespread adoption of UMA technology, a number of leading companies within the wireless industry have jointly developed a set of open specifications. <http://www.umatechnology.org/> now adopted as [3GPP TS 44.318](http://www.3gpp.org/ftp/Specs/html-info/44318.htm).
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## Protocol dependencies
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- [TCP](/TCP): Typically, UMA uses [TCP](/TCP) as its transport protocol.
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## Example traffic
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XXX - Add example traffic here (as plain text or Wireshark screenshot).
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## Wireshark
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The UMA dissector is partially functional.
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## Preference Settings
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The TCP port for UMA call setup is configurable
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## Example capture file
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XXX - Add a simple example capture file to the [SampleCaptures](/SampleCaptures) page and link from here. Keep it short, it's also a good idea to gzip it to make it even smaller, as Wireshark can open gzipped files automatically.
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## Display Filter
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A complete list of UMA display filter fields can be found in the [display filter reference](http://www.wireshark.org/docs/dfref/UMA/UMA.html)
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Show only the UMA based traffic:
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```
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UMA
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```
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## Capture Filter
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You cannot directly filter UMA protocols while capturing. However, if you know the [TCP](/TCP) port used (see above), you can filter on that one.
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## External links
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- [UMA technology](http://www.umatechnology.org/)
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- [UMA Today](http://www.umatoday.com/)
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- [UMA Today blog](http://umatoday.blogspot.com/)
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## Discussion
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---
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Imported from https://wiki.wireshark.org/UMA on 2020-08-11 23:27:04 UTC |