ooh323 question

I used chan_ooh323, installed correctly and passed all tests from README. But when I try to call from H323-phone through the Asterisk to the other H323-phone in my local network - the context from extension.conf I gave to the user doesn’t work, instead the “default” context.

ooh323.conf:

[code]…

[user1h]
type=friend
context=context1
ip=192.168.111.6
port=1720
allow=all

[user2h]
type=friend
context=context1
ip=192.168.111.10
port=1720
allow=all
;===============================[/code]

extension.conf:

... [context1] exten => 1111,1, Dial(OOH323/user1h) exten => 1112,1, Dial(OOH323/user2h)

After all I add whole content of the [context1] to [default].
Now Asterisk says:

-- Executing [1112@defualt:1] Dial("OOH323/lib-1035", "OOH323/user2h") in new stack
-- Called user2h
== Everyone is busy/congested at this time (1:0/0/1)
== Auto fallthrough, channel 'OOH323/lib-a0fb' status is 'CHANUNAVAIL'

What is the probably reason of such behavior?
Thank you.

help me, please