[Asterisk-Users] Asterisk Hardware Recommendation

[Michael Welter]

Daniel Salama wrote:
> This is great information. I have the following questions based on a 
> hypothetical scenario and some assumptions:
> 
> Based on the price of these configurations, I wouldn't even mind putting 
> two servers each with 2 T1s just so that I could get all calls recorded 
> and distribute the risk of failure.
> 
> Now, I don't know if it would make a difference or not, but here it goes:
> 
> Assuming the cost of the systems is of no importance for a moment 
> (actually looking for the most scalable and reliable solution), which 
> would be a better approach to solve the issue of activating 4 T1s which 
> will be constantly taxed with load and be able to record all conversations:
> 
> Scenario 1: 4 T1s into Asterisk (A1) where all SIP agents register. Call 
> recording in A1.
> PSTN <--4xT1--> A1 <----> SIP_Agents
> 
> Scenario 2: 4 T1s into Asterisk (A1) to do TDM-IAX transcoding. Asterisk 
> (A1) connects to Asterisk (A2) via IAX where all SIP agents register 
> (IAX to SIP transcoding). Call recording in A1 or A2.
> PSTN <--4xT1--> A1 <----> A2 <----> SIP_Agents
> 
> Scenario 3: 4 T1s into Asterisk (A1) to do TDM-IAX transcoding. Asterisk 
> (A1) connects to Asterisk (A2) via IAX where half of SIP agents register 
> to, and the other half would register in A1. Call recording in A1 and/or 
> A2.
> PSTN <--4xT1--> A1 <----> SIP_Agents
> A1 <--IAX--> A2 <----> SIP_Agents
> 
> Scenario 4: 2 T1s into each Asterisk (A1 and A3) to do TDM-IAX 
> transcoding. Asterisk (A2) will connect to A1 and A3 via IAX. All SIP 
> Agents register at A2 (IAX to SIP transcoding). Call recording in [A1 
> and A3] or A2.
> PSTN <--2xT1--> A1 <----> A2 <----> SIP_Agents
> PSTN <--2xT1--> A3 <----> A2 <----> SIP_Agents
> 
> Scenario 5: 2 T1s into each Asterisk (A1 and A3) to do TDM-IAX 
> transcoding. Asterisks (A2 and A4) will connect to A1 and A3 
> respectively via IAX. Half SIP Agents register in A2 and other half in 
> A4 (IAX to SIP transcoding). Call recording in [A1 and A3] or [A2 and A4].
> PSTN <--2xT1--> A1 <----> A2 <----> SIP_Agents
> PSTN <--2xT1--> A3 <----> A4 <----> SIP_Agents
> 
> Hopefully you're all able to understand my 5 scenarios. I guess, my 
> questions would be:
> 
> 1) Is there a load limiting factor in terms of whether you do the 
> Monitor"ing" of the calls when you're doing TDM-IAX transcoding or 
> IAX-SIP transcoding?
> 2) Will a single CPU machine handle the 4 T1s to do TDM-IAX transcoding, 
> if another machine is doing the actual recording (IAX-SIP transconding) 
> (Scenarios 2,3,4,5). Basically, just setup "cheap" Asterisk boxes to act 
> as VoIP gateways and the distribute the "load" and/or intelligence on 
> other Asterisk boxes to connect SIP agents and all dialing rules, etc?
>


I haven't seen this before--can an agent log into a queue on a remote 
(i.e. over IAX) Asterisk server?