[Asterisk-Users] T100P <-> Merlin Legend 100D not working

[spectro]

We are trying to connect asterisk with our Merlin Legend. Everything
looks good but calls wont go through (get fast busy in both sides):

Here is a pri debug of an outgoing call:

--- snip ---

-- Making new call for cr 32778
> Protocol Discriminator: Q.931 (8)  len=45
> Call Ref: len= 2 (reference 10/0xA) (Originator)
> Message type: SETUP (5)
> [04 03 80 90 a2]
> Bearer Capability (len= 5) [ Ext: 1  Q.931 Std: 0  Info transfer capability: Speech (0)
>                              Ext: 1  Trans mode/rate: 64kbps, circuit-mode (16)
>                              Ext: 1  User information layer 1: u-Law (34)
> [18 03 a1 83 81]
> Channel ID (len= 5) [ Ext: 1  IntID: Implicit, PRI Spare: 0, Preferred Dchan: 0
>                        ChanSel: Reserved
>                       Ext: 1  Coding: 0   Number Specified   Channel Type: 3
>                       Ext: 1  Channel: 1 ]
> [28 0d b1 56 69 63 74 6f 72 20 50 65 72 65 7a]
> Display (len=13) Charset: 31 [ Victor Perez ]
> [6c 06 21 80 34 33 30 35]
> Calling Number (len= 8) [ Ext: 0  TON: National Number (2)  NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1)
>                           Presentation: Presentation permitted, user number not screened (0) '4305' ]
> [70 05 a1 34 31 38 39]
> Called Number (len= 7) [ Ext: 1  TON: National Number (2)  NPI: ISDN/Telephony Numbering Plan (E.164/E.163) (1) '4189' ]
    -- Called g2/4189

< Protocol Discriminator: Q.931 (8)  len=9
< Call Ref: len= 2 (reference 32778/0x800A) (Terminator)
< Message type: RELEASE COMPLETE (90)
< [08 02 81 91]
< Cause (len= 4) [ Ext: 1  Coding: CCITT (ITU) standard (0) 0: 0  
Location: Private network serving the local user (1)
<                  Ext: 1  Cause: User busy (17), class = Normal Event (1) ]
-- Processing IE 8 (cs0, Cause)
    -- Channel 0/1, span 1 got hangup

pbx*CLI>     -- Zap/1-1 is busy

NEW_HANGUP DEBUG: Calling q931_hangup, ourstate Null, peerstate Null
NEW_HANGUP DEBUG: Destroying the call, ourstate Null, peerstate Null
    -- Hungup 'Zap/1-1'
 
pbx*CLI> 
  == Everyone is busy/congested at this time

--- snip ---

zaptel.conf:
-----------------
span=1,1,0,esf,b8zs
bchan=1-7          
unused=8-23        
dchan=24           
                   
fxsks=25-26        
loadzone=us        
defaultzone=us     


zapata.conf
------------------
switchtype=5ess   
signalling=pri_net
;    rxwink=300   
group=2           
channel => 1-7    


The ML's T1 is set as PRI/Legend-Ntwk and is the last card in the
switch having only 8 available trunks. That is why I am only using 7
b-channels. I am guessing that the ML would put its d-channel
elsewhere but when I try changing dchan to anything but 24 asterisk
won't start with:

Unable to open D-channel 24 (No such device or address)
Unable to start D-channel on span 1

Is this a d-channel problem or something else?

I was using 1.0-stable but I upgraded to 1.0.2 without differences.
(btw, verbose output is totally messed up in 1.0.2)

Thanks in advance,
Victor Perez