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Cisco Bug: CSCta37241 - [SRST] fail to resume after handover

Last Modified

Apr 06, 2012

Products (1)

  • Cisco IOS

Known Affected Releases


Description (partial)


A customer's handset cannot talk to SIP IP Phone again even if it resume the call
when it moves to other area and requests handover on the status of call hold.

(1) handset (62000) calls SIP IP Phone(7906).
(2) SIP IP Phone(7906) answers.
(3)handset (62000) places the call on hold.
(4) customer's handset(62000) moves to other area. [Handover]
(5) customer's handset(62000) resumes the call. However, it cannot talk to SIP IP Phone(7906).

It has 2 problems.

Problem 1:
In the operation (4), customer's handset(62000) sends INVITE(sendonly) to SRST.
However, SRST sends INVITE(without stream attr) to SIP IP Phone(7906).
In the case with CUCM, CUCM sends INVITE(sendonly) correctly.

Problem 2:
In the operation (5), customer's handset(62000) sends INVITE(without stream attr) to SRST.
But SRST doesn't send INVITE to SIP IP Phone(7906). Therefore, 62000 and 7906 cannot


While requesting handover
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