[Freeswitch-users] how do I play music on hold for A-leg while IVRing with B-leg

[Greg Buzzard]

Hi All, new to FreeSwitch, great software!  Read earlier posts, bought FS book and am about half-way through it and still have a question.

Problem context:  I'm trying to do a form of call screening for home use using a Lua script.  I record a "self-intro" message from calling party (A-leg), would then like to play hold music for A-leg while creating new session and doing IVR dance with called party (B-leg).  IVR objective is to see if B-leg wishes to accept, add caller-ID to whitelist or blacklist, and/or send to voicemail, etc.  I have all of this working except the ability to play hold music to A-leg before either bridging them, sending them to voicemail or playing a message and dropping them.

Specific problem:  I don't have my head wrapped around the "clean" approach to addressing this problem.  I.e., seems like I may want to "park" the A-leg (with music), while I do the IVR with B-leg.  Then either: (1) unpark A-leg and bridge to B-leg or (2) hang-up B-leg, unpark A-leg and send to VM or (3) other embellishments where I add caller-ID (if it exists) to either white or black lists and/or play recording to telemarketers to leave me alone (with no VM), etc.  If this is a good approach, getting a few pointers on key commands/apps to use would be great. 

FWIW, my first simple-minded approach to transfer caller (A-leg) to hold-music extension while connecting/IVRing with B-leg didn't work as execution of the transfer was held until the IVRing was done).  Similar to what I saw in some earlier postings.  If I get this figured out, I'm happy to summarize and post useful snippets to the email archive, wiki page or wherever, when done.

-g
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