Tuesday, 9 July 2013

Cisco Voice Gateways with MS Lync

Cisco voice gateways can be used in a MS Lync environment. If local breakout to the PSTN is required then some kind of voice gateway is needed.

Cisco and Microsoft have an established history of cooperating across technologies to provide customers with innovative business solutions. From Cisco's standpoint we support voice gateways connected to anything that complies with the standards, including MS Lync. From MS's standpoint, I believe they do certification tests with vendors' equipment before they say they support it. 

As far as I know, deploying Cisco ISR G2 in integration with Microsoft Lync has no issues except for a couple of caveat which is Cisco does not support Microsoft proprietary codecs (ie RTAudio and RTVideo).

The below document is a good reference for an ISR voice gateway terminating a SIP trunk in a Lync enironment:
http://www.cisco.com/en/US/solutions/collateral/ns340/ns414/ns728/ns833/1197443.pdf

Just an update to the above post, I've since found that there are companies, such as Sonus, who build Lync SBAs which are affectively SRST boxes which also have the voice gateway features, you specify the interfaces and they can build the device, I believe it's just a server with the appropriate cards, but this is certainly something worth bearing in mind.

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