19th December 2003 at 06:25 #36809
This is no roaming. This is interworking between GSM and CDMA n/w so that a GSM subscriber can send message to CDMA subscriber and visa versa. This is kind of black box that converts the CDMA SMS messages of IS-41 format into GSM MAP format so that the GSM network entities can send that message to The GSM subscribers.
This is in no way roaming.