Help with changing SIP Stack Request retransmit setting

Can anyone help on reconfiguring the NIST Sipstack Retransmit Timer from
default values?


*Problem*:
When a NOTIFY/OPTION request is sent to ...for example a SIP phone with a
bad or non existing IP Address via the sipstack, the stack retransmits the
NOTIFY request at the intervals of 500 ms, 1 s, 2 s, 4 s, 4 s, 4 s, etc
until the request finally times out. In all, there could be up to 8 NOTIFY
or more requests before the request times out.

*Desired:*
I want to be able to configure the sipstack to limit the number of
retransmission of NOTIFY/OPTION requests that can be sent before the request
times out. For my application, 4 or less retransmit NOTIFY/OPTION requests
is ok. Or I want the intial request to Timeout after say 4s instead of 32s.

*I've tried:*
Using the RetransmitTimer but it throws exceptions....
ClientTransaction *trans* *=* *udpProvider**.getNewClientTransaction(**
request**);*
*trans**.setRetransmitTimer(10*00*);*
*trans**.sendRequest();*
**
*Solution:*
?

Thanks

Sincerely,
Amos.

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