Editing GPRS (section)

=== Protocols supported ===
GPRS supports the following protocols:
* [[Internet Protocol]] (IP). In practice, built-in [[mobile browser]]s use [[IPv4]] before [[IPv6]] is widespread.
* [[Point-to-Point Protocol]] (PPP) is typically not supported by [[mobile phone operator]]s but if a cellular phone is used as a [[modem]] for a connected computer, PPP may be used to tunnel IP to the phone. This allows an IP address to be dynamically assigned (using [[Internet Protocol Control Protocol|IPCP]] rather than [[Dynamic Host Configuration Protocol|DHCP]]) to the mobile equipment.
* [[X.25]] connections are typically used for applications like wireless payment terminals, although it has been removed from the standard. X.25 can still be supported over PPP, or even over  IP, but this requires either a network-based [[Router (computing)|router]] to perform encapsulation or software built into the end-device/terminal; e.g., user equipment (UE).

When [[Internet protocol suite|TCP/IP]] is used, each phone can have one or more [[IP address]]es allocated. GPRS will store and forward the IP packets to the phone even during [[handover]]. The TCP restores any packets lost (e.g. due to a radio noise induced pause).