Hi All,

RFC 3261 states that "A UA SHOULD use the same Call-ID for all registrations 
during a single boot cycle." And technically a UA is still within the same 
boot cycle even when the network connection is lost. Right?

Hence is it fair to assume that UA should generate the same Call-ID when UA 
remains powered on, and got reconnected to network after a network failure ? 
(maybe Home gateway or DSL/cable modem or Internet SP failure). Will be great 
if 
anyone can confim if my assumptions are correct.

RFC 3261, Section 10.2
Call-ID: All registrations from a UAC SHOULD use the same Call-ID header 
field value for registrations sent to a particular registrar.
      If the same client were to use different Call-ID values, a registrar 
could not detect whether a delayed REGISTER request might have arrived out of 
order.

RFC 3261, Section 10.2.4
A UA SHOULD use the same Call-ID for all registrations during a single boot 
cycle.  Registration refreshes SHOULD be sent to the same network address as 
the original registration, unless redirected.

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Thanks & Regards
Monica Ingudam (Mail: [EMAIL PROTECTED])
Signal Engineer
AOL Dulles
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