POP3
PUK and PUK2
SIP
SSID
Streaming
UMTS
Post office protocol, version 3. A common mail protocol that can be used for accessing your remote mailbox.
PIN Unblocking Key. PUK and PUK2 codes are required to change a blocked PIN code or PIN2 code, respectively. The length of the code is 8 digits.
Session initiation protocol. SIP is used for creating, modifying, and terminating certain types of communication sessions with one or more participants.
Service set identifier. SSID is the name that identifies the specific WLAN.
Streaming audio and video files means playing them directly from the web without downloading them first to your device.
Universal mobile telecommunications system. UMTS is a 3G mobile communication system. Besides voice and data, UMTS enables audio and video delivery to wireless devices. When you use your device in GSM and UMTS networks, multiple data connections can be active at the same time, and access points can share a data connection. In the UMTS network, data connections remain active during voice calls. You can, for example,
| browse the web faster than previously |
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| possible while simultaneously |
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| speaking on the phone. |
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UPIN | PIN code used in UMTS network. |
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UPUK | UPIN Unblocking Key. UPUK code is |
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| required to change a blocked UPIN |
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| code or PIN2 code. The length of the |
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| code is 8 digits. |
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USIM | SIM card used in UMTS network. |
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USSD | A service request, such as request to |
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command | activate an application or configure |
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| various settings remotely, that you can |
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| send to your operator or service |
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| provider with your device. |
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VoIP | Voice over internet protocol |
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| technology. VoIP is a set of protocols |
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| that facilitate phone calls over an IP |
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| network, such as the internet. |
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VPN | Virtual private network. VPN creates a |
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| secure connection to compatible |
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| corporate intranet and services, such |
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| as |
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WAP | Wireless application protocol. WAP is |
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| an international standard for wireless |
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| communication. |
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WEP | Wired equivalent privacy. WEP is an |
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| encryption method that encrypts data |
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| before it is transmitted in WLAN. |
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WLAN | Wireless local area network. |
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