[Asterisk-Users] Red Alarm

[Steve Underwood]

An E1 can be a long way from the box with the right cable. However many 
people use the wrong cable. Using a LAN cable for an E1 often gives 
errors if the cable is more than just a few metres long. Although the 
plugs look the same, the twisted pairs should be grouped differently in 
an E1 cable, and it really makes a difference. If the drop cable is only 
a couple of metres long, a LAN cable is usually adequate. This is also 
true for T1s.

Regards,
Steve


Bisker, Scott (7805) wrote:

>How far is your server from the telco box?  I found that with extended
>distances, my reliabilty was significantly decreased.  If you still have
>problems, check your RJ-48X jack for connection problems.
>
>-sb
>
>
>
>
>-----Original Message-----
>From: Eduardo Goncalves [mailto:eduardo at acenet.com.br]
>Sent: Tuesday, November 04, 2003 5:02 AM
>To: asterisk-users at lists.digium.com
>Subject: Re: [Asterisk-Users] Red Alarm
>
>
>On Mon, 3 Nov 2003 17:15:21 -0600
>Don Pobanz <dpobanz at hastingsutilities.com> wrote:
>  
>
>>>>	Sometimes I receive a Red Alarm in my E1 trunk (E&M immediate
>>>>	start
>>>>signaling), and just few seconds after this, all alarms are 
>>>>        
>>>>
>>cleared.
>>    
>>
>>>>	This problem ocurrs many times/day, and if are calls in
>>>>	progress,
>>>>these calls just hang-up.
>>>>	Could it be an asterisk bug? Or may I contact the PSTN provider?
>>>>        
>>>>
>>>I'd suggest your telco doing loopup and checking the circuit.
>>>
>>>      
>>>
>
>	My telco checked the circuit last night and didn't find anything
>wrong.
>	Now I'm lost. What should I check to find what's going on?
>
>
> 
>Eduardo
>  
>