[Asterisk-Users] Problems with MFC/R2 in Brazil

[Steve Underwood]

Mabio Coelho wrote:

> People,
>
> I’m tring to use 2 e-1 in Brazil. In order to get R@ signaling, I 
> compilled libdsp, unicall and stuff following www.soft-switch.org 
> <http://www.soft-switch.org/> comparing with another site (Dezert of 
> Zazamora, in Mexico). Asterisk is running fine with Asterisk but I 
> can’t make calls.
>
> The guys on the telco company tells me that I have a LOMF (Loss of 
> Multi Frame) error in their end (the far-end) and we can exchange 
> digits. They expect R2-Digital signaling and they think the 
> implementation I use is not quite right.
>
> When I try to make a call the result is as follows:
>
> Nov 11 12:02:13 VERBOSE[3451]: -- Executing Dial("SIP/200-3ced", 
> "UNICALL/g2/55431100") in new stack Nov 11 12:02:13 DEBUG[3451]: Using 
> channel 1 Nov 11 12:02:13 DEBUG[3451]: unicall_call called - 'g2/55431100'
>
> Nov 11 12:02:13 DEBUG[3451]: unicall_call caller id - '"Mabio Coelho" 
> <200>'
>
> Nov 11 12:02:13 WARNING[3451]: MFC/R2 UniCall/1 Call control(1) Nov 11 
> 12:02:13 WARNING[3451]: MFC/R2 UniCall/1 Make call Nov 11 12:02:13 
> WARNING[3451]: Make call failed - Blocked Nov 11 12:02:13 DEBUG[3451]: 
> ast call on peer returned -1 Nov 11 12:02:13 DEBUG[3451]: Hanging up 
> channel 'UniCall/1-1'
>
> Nov 11 12:02:13 DEBUG[3451]: unicall_hangup(UniCall/1-1) Nov 11 
> 12:02:13 WARNING[3451]: MFC/R2 UniCall/1 Channel gains Nov 11 12:02:13 
> WARNING[3451]: MFC/R2 UniCall/1 Channel switching Nov 11 12:02:13 
> DEBUG[3451]: Hangup: channel: 1 index = 0, normal = 18, callwait = -1, 
> thirdcall = -1 Nov 11 12:02:13 DEBUG[3451]: Updated conferencing on 1, 
> with 0 conference users Nov 11 12:02:13 VERBOSE[3451]: -- Hungup 
> 'UniCall/1-1'
>
> Nov 11 12:02:13 VERBOSE[3451]: == Everyone is busy/congested at this time
>
> I’m attaching the three most relevant configuration files. Sorry if is 
> kind of messy (a lot of lines commented out), that is because I tried 
> a lot of things before posting.
>
If the telco sees a loss of multi-frame sync from your end the problem 
is nothing to so with the MFC/R2 code. Either you have the zaptel.conf 
set incorrectly, or your line is faulty, or a card is faulty.

Steve