A GAIT-compliant mobile phone typically accepts a
SIM card, similar to a standard GSM phone; however, depending on the wireless provider, the SIM card enables access not only to that wireless provider's GSM network, but also enables use of the telephone on any TDMA or AMPS networks run by the wireless provider. In addition to the usual
IMEI found on standard GSM mobile phones, a GAIT-compliant mobile phone also includes an AMPS-style
ESN unique to the mobile phone. In the
United States, Cingular Wireless (now
AT&T Mobility) offered the
Nokia 6340 and
Sony Ericsson T62u to customers who wished to have a GAIT mobile phone (although these phones are no longer marketed through AT&T). An update to the Nokia 6340, the Nokia 6340i, added GSM 850 support and was also carried by Cingular. The Nokia 6340 was also offered by Canadian provider
Fido Solutions. The version sold by Fido was unique in that it was used solely for analog roaming, with the IS-136 "TDMA" portion of the phone disabled. Fido discontinued the phone upon their acquisition by
Rogers Wireless, which allowed access to Rogers' extensive GSM network that already overlaid the existing analog networks in
Canada. Rogers Wireless, meanwhile, never offered a GAIT solution to customers, as their entire IS-136 TDMA and AMPS networks were overlaid with GSM by the time the service was launched. ==See also==