SBC and sister company Cingular Wireless last week announced they will deploy a next-generation network architecture called IP Multimedia Subsystem from Lucent.
IMS is an architecture that defines how an IP network should handle voice calls and data sessions. It essentially takes the place of the control infrastructure in a traditional circuit-switched phone network, but it separates services from the networks that carry them.
Cingular and SBC will implement their IMSs separately, but they are both using Lucent, which will enhance their opportunities to give users a seamless wireless and wireline experience, according to SBC.
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