[chan-capi-users] B channels

[Christoph Kling]

Hello,

I use chan capi 1.1.0 on debian linux (current testing) with asterisk 1.4.18 (debian package). I configured a AVM Fritz PCI isdn card in capi.conf using devices=2 to indicate two b-channels. 
However, if one channel is in use (call from external-isdn to sip phone), "capi show channels" gives me:


---snip---
delta*CLI> capi show channels
CAPI B-channel information:
Line-Name       NTmode state i/o bproto isdnstate   ton  number
----------------------------------------------------------------
ISDN1#02         no    Conn   I  trans  *B          0x01 '0123456'->'17'
ISDN1#01         no    Disc   -  trans              0x00 ''->''
---snap---

So far, everything is fine. But if I call now with a second phone, asterisk cannot use the second channel. On the console, it writes:


---snip---
  == ISDN1#00: Incoming call '**12' -> '17'
    -- Executing [17 at capi-in:1] Answer("CAPI/ISDN1#00/17-9", "") in new stack
  == ISDN1#00: Answering for 17
    -- Executing [17 at capi-in:2] Wait("CAPI/ISDN1#00/17-9", "1.5") in new stack
       > ISDN1#00: CAPI INFO 0x34a2: No circuit / channel available
---snap---
(Please don't mind the ** numbers. My hardware pbx "t-concept xi-321" indicates internal calls with them. The call **12 comes from an internal isdn phone.)

Why is that so?


Regards,
Christoph Kling
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