| Declaration submission | Declaration submission |
| US20010919641 | US20010919641 |
| 31/07/2001 | 31/07/2001 |
US6871070 B2 22/03/2005 US2003027569 A1 06/02/2003 | US6871070 B2 22/03/2005 US2003027569 A1 06/02/2003 |
| Communication system for providing roaming between an internet protocol multimedia system and a circuit-switched domain | Communication system for providing roaming between an internet protocol multimedia system and a circuit-switched domain |
| | |
| | |
| UNITED STATES | UNITED STATES |
| | |
| US20010919641 | US20010919641 |
| LUCENT TECHNOLOGIES INC [US] | Lucent Technologies Inc EJZAK RICHARD PAUL |
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| | |