We're trying to install a network with a Cisco 2921 router and two Cisco 3750 switches for use with a data and voice vlan that need access to the internet. The phones are polycom phones which download their firmware/configuration and register through...

Hi again! Anyone have an idea of how to configure a 1921 router with a serial T1 interface and eHWIC 4G LTE V as a failover?  Below is a portion of the current config with just the serial T1 interface set up.  I have read through the documentation fo...

Hello,We have a Cisco 2811 running IOS version 15.0M(1).  We have been noticing multiple input, frame, overrun errors on the multilink interface but none on the two serial interfaces.  I'll display some commands I issued below.  Can you tell me if th...

Hi,We have a version of CUCM 6.1.3.3000-1 and Unity 4.0 Build 4.0(5).  The site is now noticing that calls unanswered are not going to voicemail.  A no answer occurs.  All call forwarding is set as normal.  When the users hit the messages button on t...