UMA

From Protocolinfo

Unlicensed Mobile Access or UMA, is the commercial name of the 3GPP Generic Access Network, or GAN standard. GAN is a telecommunication system that extends mobile voice, data and IP Multimedia Subsystem/Session Initiation Protocol (IMS/SIP) applications over IP access networks.

The most common application of GAN is in a dual-mode handset service where subscribers can seamlessly roam and handover between wireless LANs and wide area networks using a GSM/Wi-Fi dual-mode mobile phone. GAN enables the convergence of mobile, fixed and Internet telephony, sometimes called Fixed Mobile Convergence.

The local network may be based on private unlicensed spectrum technologies like 802.11, while the wide network is alternatively GSM/GPRS or UMTS mobile services. On the cellular network, the mobile handset communicates over the air with a base station, through a base station controller, to servers in the core network of the carrier.

Contents 1 Specifications 2 Identification 2.1 Ports 2.2 Filters 2.2.1 l7-filter 2.2.2 Wireshark filter 3 See also 3.1 Online references 3.2 Internet discussions

[edit] Specifications

• 3GPP GAN Specification 43.318
• 3GPP GAN Specification 44.318

[edit] Identification

[edit] Ports

TCP/IP ports 4500 and 500

[edit] Filters

[edit] l7-filter

None currently.

[edit] Wireshark filter

• Wireshark Filter Wiki Page
• Wireshark Display Filter Reference Page

[edit] See also

[edit] Online references

• Wikipedia's UMA/GAN article
• UMA Today
• 3GPP

[edit] Internet discussions

• Article on Blackberry Forums