| Editor's note: We will be changing how we send out Network World newsletters over the next few weeks. To ensure future delivery of your newsletters, please add nww_newsletters@newsletters.networkworld.com to your e-mail address book or 66.186.127.216 to your white-list file. Thank you. IPV conferencing: Bandwidth and quality Continuing our discussion about IP Video (IPV) as a carrier's managed VPN feature, we heard back from Neil Davies, Chief Scientist at Predictable Network Solutions. His company is a consultancy that provides tools and technology to help service provides better manage their networks. Masergy's global IPV service When we asked for reader replies about any carrier that offers IP Video (IPV) as an option with their IP-VPN, we heard from Masergy confirming that they offer global IPV service over Layer 2 and Layer 3 VPNs. In a follow-up interview we spoke with Tony Hurtado, VP Global Marketing and PR; and Scott Brothers, Director Product Management at Masergy. Issues with carrier-based IPV Many thanks to the readers who replied to our newsletter last week about IP Video (IPV) offered as a managed service within a carrier's IP-VPN portfolio. Today, we'll look at one reader's observations on some thorny issues about carrier-based IPV, and a Hong Kong provider we heard from that has recently introduced a managed IPV. IPV over an IP-VPN Following our recent newsletter focus on IP Video, we heard from one of our readers with some excellent questions about IPV over an IP-VPN. He asked, "What would you say were the challenges inherent in adding video to an IP VPN that is already set up for data and voice? Some ISPs offer VoIP convergence with data over an IP VPN but not many offer video too. I would have thought that many industries would welcome the addition of video conferencing over their VPN as a way of saving time and money going to meetings. Is there a reason why this is not being offered as an add-on service?" Cisco IOS Dial-Peers: VoIP Dial Peer Configurations Cisco Subnet blogger Dennis Hartmann runs through the dial-peer options of dial-peer 100. Cisco 7900 Series Phones: EoS and EoL Announcements By Dennis Hartmann discusses EoS and EoL information related to Cisco phones. He seems to have more questions than answers and is need of readers' help. Unity 8.0 is almost over the horizon Cisco Subnet blogger Avner Izhar points out some interesting features in Unity 8.0, which is scheduled for a field trial in June. Cisco IOS dial peers Cisco Subnet blogger Dennis Hartmann gives an overview of VoIP dial peers in this latest installment on IOS dial peers. Smart SIP softphone links Macs to Microsoft OCS Microsoft Subnet shows off a demo of the X-Lite softphone that connects your Mac to Microsoft Office Communications Server 2007 R2. April giveaways galore
Cisco Subnet and Microsoft Subnet are giving away training courses from Global Knowledge, valued at $2,995 and $3,495, and have copies of three hot books up for grabs: CCVP CIPT2 Quick Reference by Anthony Sequeira, Microsoft Voice Unified Communications by Joe Schurman and Microsoft Office 2007 On Demand by Steve Johnson. Deadline for entries April 30. Network World on Twitter Get our tweets and stay plugged in to networking news. | 
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