we where testing IAD2432 with SIP and it seems we can not make it to support hook-flash functionality. When I dial first number and press flash button I get a second dial tone and first phone conversation is on hold, after dialing a second number when I press flash button I get a third dial tone not a 3-way add hock conference as with traditional PBX like feature and first call gets dropped.
Bellow is the documentation I used to configure those features with SIP:
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
Over the last few months, I have had the privilege of working on SI...
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