[cisco-voip] How does voice recorder works? Do I need RSPAN or ERSPAN?

[Dennis Heim]

Many of the products offer either one of the following or a combination of the above: (1)Port Mirroring (2) Built-In Bridge (BiB) (3) Software on PC. You also need to determine if you need to record all calls, external only, internal only, etc.

Dennis Heim
Senior Engineer (Unified Communications)
CDW  Advanced Technology Services
10610 9th Place
Bellevue, WA 98004

425.310.5299 Single Number Reach (WA)
317.569.4255 Single Number Reach (IN)
317.569.4201 Fax
dennis.heim at cdw.com<mailto:dennis.heim at cdw.com>
cdw.com/content/solutions/unified-communications/<http://www.cdw.com/content/solutions/unified-communications/>

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Buchanan, James
Sent: Tuesday, December 27, 2011 12:07 AM
To: Ki Wi; Cisco VoIP List
Subject: Re: [cisco-voip] How does voice recorder works? Do I need RSPAN or ERSPAN?

Depends on the voice recording product you are using. The newer ones don't require SPAN at all in many cases.

James Buchanan| UC Technology Manager | Presidio South | Presidio Networked Solutions
12 Cadillac Dr Ste 130 Brentwood, TN 37027 | jbuchanan at presidio.com<mailto:jbuchanan at presidio.com>
D: 615-866-5729 | F:615-866-5781  www.presidio.com<http://www.presidio.com/>

From: cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net> [mailto:cisco-voip-bounces at puck.nether.net]<mailto:[mailto:cisco-voip-bounces at puck.nether.net]> On Behalf Of Ki Wi
Sent: Monday, December 26, 2011 10:44 PM
To: Cisco VoIP List
Subject: [cisco-voip] How does voice recorder works? Do I need RSPAN or ERSPAN?

I have a setup with 2 DC . There's couple of voice gateway and cucm in each DC.

There's a couple of distribution switches as well.

Between 2 DC and distribution switches are all L3.

Today, my requirement is only to span a few ports connected to the access switches of distribution switch "A". If I do a rspan from those IP phones back to distribution switch "A" and I will connect the voice recorder to distribution switch "A", will it work?

Is it neccessary for me to span the traffic from cucm and voice gateway as well? If so, ERSPAN is required.
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