With out [BCM35] Version = Head

H323 debug enabled
*CLI>   == New H.323 Connection created.
        --Received SETUP message
    -- Setting up Call
    --  Call token:  [ip$192.168.1.99:4215/32232]
    --  Calling party name:  [BCM35 Office]
    --  Calling party number:  [9722981193]
    --  Called party name:  [5001]
    --  Called party number:  [5001]
        -- Call Failed
        -- ClearCall: Request to clear call with token ip$192.168.1.99:4215/32232, cause 7
        -- Sending RELEASE COMPLETE
-- Call with  ended abnormally
        == H.323 Connection deleted.

Note: This is not required for the stable version!!!!!!

After adding the statement!
With [bcm35]
-- Executing Dial("H323/ip$192.168.1.99:4220/32233", "SIP/5001|20") in new stack
    -- Called 5001
    -- SIP/5001-0a29 is ringing
    -- SIP/5001-0a29 answered H323/ip$192.168.1.99:4220/32233
  == Spawn extension (default, 5001, 1) exited non-zero on 'H323/ip$192.168.1.99:4220/32233'
Call completes

This is from another system with the same issue. As a 1.0 Stable it works well. As a Head incoming calls cannot complete.
Notice the calling party name. Asterisk doesn't know what to do with the call so it rejects it.
CLI> == New H.323 Connection created.
--Received SETUP message
-- Setting up Call
-- Call token: [ip$172.16.1.10:2054/11497]
-- Calling party name: []
-- Called party name: [701]
-- ICalled party number: [701]
-- Call Failed
-- ClearCall: Request to clear call with token ip$172.16.1.10:2054/11497, cause 7
-- Calling party number: []
-- Called party name: [701]
-- Called party number: [701]
test*CLI> -- Sending RELEASE COMPLETE
-- Call with ended abnormally
== H.323 Connection deleted.