Asterisk\Elastix legacy PABX integration
Wild shot in the dark here, but I thought I'd ask.
I am playing with an Elastix system, and would greatly like it to integrate with our old NEC Aspire system over SIP. Mainly so I don't have to buy an FXO card, that will become obsolete when I beat, ahem, persuade our BDM into going fully VOIP across our centres.
For those that don't know, or want to know, the FXO card would let me connect analogue extensions from the SLIU card in the NEC and register them as extensions on the Asterisk box. Therefore using a 4 port FXO PCI-Express card in the Asterisk server and 4 of the analogue extensions on the NEC, I get 4 'trunks' between the systems. These cards though are not cheap, running £150 ish for a clone to multiple hundreds for the proper asterisk compatible card. This is the usual way to connect legacy PABX to Asterisk, but as both systems are supposedly IP(levelling that comment at the NEC), they should talk over SIP.
(Suppose I could buy the card with FXO modules, and then buy FXS modules later on and use it for fax machines etc, a bit of justification!)
Anyone tried this? I keep getting a 400 Bad Request from the NEC box when I try and add it as a trunk.
Although this problem is nothing compared with me always typing Asterix instead of Asterisk when Google searching!