<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt">Hi all,<br><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt;"><div>First let me lay out the situation, we have a mixture of offices with a mixture of phone systems including meridian, siemens DX, siemens Hi-Path and Cisco Call Manager. They are all part of a local Featurenet system where they can make (5-digit) extension to extension calls to each over what amounts to a
private phone VPN (mainly DPNSS over E1)<br>We have a trusted third party whom we have a firewalled off 2mb data link to who has a call manager 4.x.<br>The idea is for us to be able to make calls and receive calls to this call manager 4.x<br>Would it be possible to setup an Intercluster trunk between their call manager and one of ours (we have a 4.1 and a 6.1) and have them break out onto our private
phone VPN from our call manager?<br>To hopefully make it more clear<br><br>Site A -
trusted third party with call manager 4.x (extension range 68xx)<br>Site B - internal site with call manager (extension range 66xxx)<br>Site C - other internal site with another phone system (extension range 20xxx)<br><br>So if we setup an Intercluster trunk between Site A and Site B would Site A be able to call Site C and vice versa?<br>Also would anyone know what ports we would need to open on our firewall (we would have to NAT the connection) to allow this to work.<br>Thanks,<br>Damian<br><br></div>
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