[cisco-voip] Redundant Call Unity boxes

[Martin Bufton]

Jason,

 

Thanks for the fast reply.

 

The VPN is running across the WWW

 

Site A has a 15Meg pipe

Site B has a 20 Meg pipe

 

Ping round trip is currently 7ms

 

 

 

 

Martin Bufton BSc (Hons), CCNA - Systems Engineer

 

Email: m.bufton at spectra-group.co.uk
<mailto:m.bufton at spectra-group.co.uk> 

Tel: 01531 651221

Mobile: 07515 285505

 

Spectra Group (UK) Limited

 

Telephone: 0845 2600 444   Web: www.spectra-group.co.uk
<http://www.spectra-group.co.uk/>  Fax: 0845 2600 445

 

Company Registration Number: 4570376

 

From: Jason Shearer [mailto:jshearer at amedisys.com] 
Sent: 17 February 2010 12:23
To: Martin Bufton; cisco-voip at puck.nether.net
Cc: Liam Devine
Subject: RE: [cisco-voip] Redundant Call Unity boxes

 

Martin,

 

What kind of latency and bandwidth do you have between the two sites?

 

Jason

 

From: cisco-voip-bounces at puck.nether.net
[mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Martin Bufton
Sent: Wednesday, February 17, 2010 6:14 AM
To: cisco-voip at puck.nether.net
Cc: Liam Devine
Subject: [cisco-voip] Redundant Call Unity boxes

 

I have purchased two call Unity servers as part of our CUWL license

 

I was hoping to be able to configure them in a cluster, though I don't
think that is possible.

 

I would like one located in site A and one located at site B

 

The sites are separate by a routed VPN tunnel.

 

Each site will eventually have a MGCP PRI  each.

 

I already have a CCM cluster configured on CCM at one site, one at the
other.

 

I have one Unity server up and running acting as an Auto Attendant and
voicemail service for my extensions.

 

Can some please advise the best topology to give me maximum reliability
and minimal impact to a user if a server went down?

 

I am not connecting to Exchange of Lotus.

 

Thanks in advance Martin.

 

 

 

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