Hi, I have a question regarding contact headers returned in the registration response where more than one contact binding exists. Should a new registration or refresh "touch" other existing contact bindings for the AoR? The question is specific to the expires value reported for each contact binding. I understand that if the registrar accepts the registration request the expires value reflects the accepted expiration time for that contact binding, but some questions have been raised about the expires value reported for the other contact binding. Should the other contact binding reflect the remaining (time-to-live) expiration value or be updated to reflect the new registration (or refresh), i.e., all are reported with the same expires value. I cannot point to any definitive requirement in RFC3261. Thanks
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