[Asterisk-Users] E1/T1 back to back ??

[Mark Phillips]

The cross-over cable is what I do between by Asterisk and my Lucent 
PBX's. Works great!!

Peter Svensson wrote:
> On Mon, 14 Mar 2005, Brett, Gary wrote:
> 
> 
>>Just a quick question, I will be building some servers in a lab utilizing
>>Digium E1 cards. I would like if possible to avoid the expense of installing
>>an e1/ISDN30 in my lab. I have two questions really, first does anybody know
>>of an effective simulation tool I can use to replicate a real world PRI but
>>without the telco line being installed. And secondly, can I have a scenario
>>with 2 asterisk servers with digium e1 cards 'back to back' one configured
>>as the network side and the other configured as the client side (can I just
>>use a single cat5 straight through cable between them ?? and cant the Digium
>>e1 cards operate ok in both modes?)
> 
> 
> You can put two Asterisk-boxes back-to-back. Configure one as pri_cpe and 
> one as pri_net. You need an E1 cross over cable which is different from an 
> ethernet cross over cable. Search the net for which pins to connect.
> 
> Other alternatives exist. They may be closer to what you would see from a 
> real pstn connection, but they are also a lot more expensive. 
> 
> Peter
> 
> 
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