David Hailey

Member Since: Mar 01, 2005

English
David Hailey commented on Does g711ulaw uses only 160 bytes? in IP Telephony 1 year ago

The bit rate is 64Kbps, the voice payload is 160 Bytes. See http://www.cisco.com/c/en/us/support/...

David Hailey commented on Contact Center Upgrade SKU in Contact Center 1 year ago

If your customer has an existing support contract for UCCX, then they would actually order the...

David Hailey commented on Cisco Jabber Client for Linux in Jabber Clients 1 year ago

Mike,The larger body of use case and development for Jabber has centered on Windows and mobile iOS...

David Hailey commented on upgrade CUCM 8.5 to 10.5 using PCD simple migration in Unified Communications Applications 2 years ago

Correct - no impact to the Subscriber until you proceed with the upgrade.HaileyPlease rate helpful...

David Hailey commented on Device Pool - How many devices are supported for each Device Pool? in Unified Communications Applications 2 years ago

I've never seen anyone limit the number of devices in a device pool; however, it is common to use...

David Hailey commented on Dial-Peers on the router vs the CUCM Publisher in IP Telephony 2 years ago

First, the route pattern in CUCM simply routes the call to the gateway and passes along the final...

David Hailey commented on How to manage extensions on a sidecar in IP Telephony 2 years ago

Unfortunately, there isn't a tool that is going to automate updating and putting the lines in order...

David Hailey commented on External voice mail in UN 9.1 in Unified Communications Applications 2 years ago

If I understand your description of issue, it sounds as if you have a one-way audio issue.  If...

David Hailey commented on Best practice RAID configuration for UCS C260 M2 for Unified Communications? in Unified Communications Applications 2 years ago

The RAID setup depends a bit on your specific configuration; however, there is a guide for Cisco...

David Hailey commented on CUCM BoQ for 250 users in IP Telephony 2 years ago

You need to look at not only how many users but also the features that are required...you may...

David Hailey commented on Unity Connection - A subquery has returned not exactly one row. in Unified Communications Applications 2 years ago

Definitely sounds like a database issue that may be caused by a bad host file/reference in...

David Hailey commented on Hosted Voip for Small Business in IP Telephony 2 years ago

No problem - I believe their UC service offering is called MaxxPoint...has a lot of features and...

David Hailey commented on Hosted Voip for Small Business in IP Telephony 2 years ago

Take a look at West IP - http://westipc.com/Hailey

David Hailey commented on MGCP Gateway instead of H323 in IP Telephony 2 years ago

It's not really a matter of "supporting" MGCP or not...it's a matter of preference.  If you're...

David Hailey commented on How to test Cisco Webex Meeting Server High Availability ? can someone share best practice ? in Conferencing 2 years ago

There isn't a predefined acceptance test for CWMS.  However, I have recently done a few installs...

David Hailey commented on MGCP Gateway instead of H323 in IP Telephony 2 years ago

My colleague Bill's blog as noted above is worth the read.  You will get a mixed bag of answers on...

David Hailey commented on Cisco callmanager ver 8x in IP Telephony 2 years ago

You could do either - the premise would be the same.  You would use translation pattern(s) that...

David Hailey commented on Cisco webex meeting place server in Conferencing 2 years ago

This isn't really a forum for verifying the accuracy of a BoM.  I would suggest you work with your...

David Hailey commented on Cisco callmanager ver 8x in IP Telephony 2 years ago

So you have a multi-tenant dial plan and do 4-digit abbreviated dialing at the tenant (site) level...

David Hailey commented on CUCM - Unkown partyforwarding to our DID in IP Telephony 2 years ago

On the PSTN gateway (assuming you are running H323 or SIP), then you can use an IOS rule to...

David Hailey commented on Cisco callmanager ver 8x in IP Telephony 2 years ago

Essentially you want to implement an abbreviated dialing solution within the cluster.  In order to...

David Hailey commented on Cisco webex meeting place server in Conferencing 2 years ago

The end of sale date for MeetingPlace was just this past week...see http://www.cisco.com/c/en/us/...

David Hailey commented on Cisco webex meeting place server in Conferencing 2 years ago

A couple things here for reference:1.  WebEx and MeetingPlace are 2 very different products.  You...

David Hailey commented on Route voicemail to an external e-mail address in Other Collaboration, Voice, and Video Subjects 2 years ago

I would suggest that you take a look at the ticketing system to see if you possibly need to...

David Hailey commented on Difference in Webex 1.5 and 2.0 in Other Collaboration, Voice, and Video Subjects 2 years ago

Given that this is an ever evolving product with ongoing bug fixes and enhancements, I would...

David Hailey commented on RightFax VM not taking inbound calls in IP Telephony 2 years ago

Ok - so the call is routed into the network and then when you assign it to a route pattern, which...

David Hailey commented on RightFax VM not taking inbound calls in IP Telephony 2 years ago

Well, the number is either a DID or it's not...DID just means that it is a direct inward dial...

David Hailey commented on RightFax VM not taking inbound calls in IP Telephony 2 years ago

That's what you need - an incoming call on the PRI that is controlled by CUCM needs some sort of...

David Hailey commented on Unity Connection and Outlook in Unified Communications Applications 2 years ago

You need to look at the client side configuration to see if a) there are Outlook rules enabled to...

David Hailey commented on Need suggestion for Unity Connection 9.1(2) alert on SIB failure? in Unified Communications Applications 2 years ago

Unfortunately, I don't think there is any intuitive or simple way to get what you want here. There...

David Hailey commented on Unity Connection 9.1 - Voicemail button on phone in Unified Communications Applications 2 years ago

That's usually ok for a single server but for a cluster, generally should use Top Down ......

David Hailey commented on Forward call from Unity System Call Handler to UCCX in Unified Communications Applications 2 years ago

From within Unity Connection, are you attempting an immediate or supervised transfer with the...

David Hailey commented on Unity Connection 9.1 - Voicemail button on phone in Unified Communications Applications 2 years ago

In your hunt configuration in CUCM, what is the distribution algorithm you have set for the line...

David Hailey commented on COBRAS Export in Unified Communications Applications 2 years ago

See http://www.ciscounitytools.com/Applications/General/COBRAS/Help/COBRAS_Briefcase/...

David Hailey commented on Unity Connection - Email vm headers in IP Telephony 2 years ago

You could change the SMTP domain but, generally speaking, that's not the preferred/recommended...

David Hailey commented on Trunks during Call Manager migration in IP Telephony 2 years ago

In terms of call routing, this is definitely do-able.  In fact, I've been doing a similar migration...

David Hailey commented on getting 404 error when point brewer to CUCM admin page in Unified Communications Applications 2 years ago

https://<host>/ccmadmin --> not ccadminHailey

David Hailey commented on Unity Connection message pick up and drop in IP Telephony 2 years ago

Actually, yes - you can have site X calls going to one server and site Y calls going to the other...

David Hailey commented on Unity Connection message pick up and drop in IP Telephony 2 years ago

The call flow and message handling is determined by how you route the calls.  There is no reason...

David Hailey commented on CUCM 8.5 and 'Secondary Dialling' with SIP phone in IP Telephony 2 years ago

Sounds like those phones support RFC2833. Without a view into your system and what you have, it's...

David Hailey commented on CUCM 8.5 and 'Secondary Dialling' with SIP phone in IP Telephony 2 years ago

Well, some of what you need to look at depends on the call flow.  You need to take a look at the...

David Hailey commented on CUCM 8.5 and 'Secondary Dialling' with SIP phone in IP Telephony 2 years ago

What you are talking about is DTMF relay.  What is the voicemail system you are calling into and...

David Hailey commented on MGCP & CUCM Ports in IP Telephony 2 years ago

There's a lot that could go wrong here especially if packets are making it out to the PSTN.  Do you...

David Hailey commented on Installing RTMT Tool for 10 Clusters and 10 Unity Servers in Unified Communications Applications 2 years ago

To add to Tony's thoughts - I have multiple clients with various apps, versions, etc. You name it....

David Hailey commented on CWMS 2.X Directory Integration in Conferencing 2 years ago

I can tell you that CWMS is only really keying off of the email address so if they match then I...

David Hailey commented on HLB for CWMS (WebEx) IRP set up in Conferencing 2 years ago

No external load balancing solution is supported with CWMS.  The system handles its own load...

David Hailey commented on UN connection 9.1 sending message in Unified Communications Applications 2 years ago

What you describe sounds quite odd ... so you are pressing the MESSAGES button on an IP phone and...

David Hailey commented on Cannot Access Backup Device in Unity Connection in IP Telephony 2 years ago

No worries ... that's what the forums are for - sometimes you need a little help.

David Hailey commented on Unity Connection - PUB/SUB which should be primary? in Unified Communications Applications 2 years ago

CUC leverages an HA active/active clustering model.  So, aside from some critical level services -...

Bio

A senior unified communications engineer with more than a decade of experience working with UC and Collaboration solutions, David is also a Cisco Certified Network Professional (CCNP) in voice technologies with a strong background on integrating solutions with Microsoft application services. He currently specializes in working with clients to architect and design robust Unified Communications and Collaboration solutions. He is part of the core NetCraftsmen senior engineering and project leadership team and in that role he is responsible for managing all aspects of a solution from design to operations. Hailey is well known for his contributions to the Cisco Support Community and is a 3 time Cisco Designated VIP.

Specialties: Unified Communications, Collaboration








  • Cisco Designated VIP

    2014 IP Telephony





  • Community Spotlight Award

    Questions Answered February 2013





  • Cisco Designated VIP

    2012 Unified Communications





  • Cisco Designated VIP

    2011 IP Telephony, Unified Communications









David Hailey's Stats

Points7116
Discussion started 10
Answers marked as Correct 414
Endorsed 13
Content Rated 291
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