Enhancements that provide packet data capabilities over 2G networks. 2.5G improves the available data rates supported by the air interface, thereby permitting the introduction of new, data-oriented se [..]

Extension of 2G systems through use of 2.5G protocols providing additional features such as GPRS packet-switched connections and enhanced data rates.

GSM releases until R98. Includes 2G + packet data (GPRS) and CAMEL.

the "two-and-a-half" generation wireless-telephony standard, which uses basically the same digital technology as the 2G cellular standard but increases the data-transfer rate to a maximum 11 [..]

Second-and-a-half generation wireless service. Most carriers will move to this wireless service before making the drastic upgrade to 3G. 2.5G changes wireless service to a packet-switched service that [..]

2.5G or "second-and-a-half generation" – this was the next step from 2G and provides enhanced data communications services, including Multimedia Messaging service (MMS) as well as Wireless Application Protocol (WAP) access for emails and web browsing.

Extension of 2G systems through use of 2.5G protocols providing additional features such as GPRS packet-switched connections and enhanced data rates.