IP Telephony and Phones

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So, we've been asked to provide a room-based  video-conferencing solution for a company with three offices, 2 in the UK, 1 in China. The requirement is for a free-standing solution, i.e. no CUCM infrastructure, which can provide video links to the ot...

iwroe by Level 1
  • 2660 Views
  • 7 replies
  • 0 Helpful votes

Dear Friends I just got my CCNA RS and decided to go for CCNA Voice, and brought a lab kit (2811 router, 1841 router, 2 3560 switches, 2 phones 7961g)I use CBT Nuggets to study, and I use the following infrastructure:   The problem that I have for th...

We are upgrading from CUCM 7.1. The new cluster is v9.1 and it was initially configured by restoring an OLD backup of 7.1.. During the upcoming cutover, we want to maintain the most current call forwarding settings for all users/phones.Where is the l...

hake_1999 by Level 1
  • 274 Views
  • 2 replies
  • 0 Helpful votes

Hi All,I have a 2851 currently running "flash:c2800nm-spservicesk9-mz.151-4.M5.bin"I's also running the following.sh telephony-service allCONFIG (Version=8.6)=====================Version 8.6 I need to upgrade the IOS to c2800nm-advsecurityk9-mz.151-4...

GRANT3779 by Spotlight
  • 362 Views
  • 3 replies
  • 0 Helpful votes

I don't really touch SIP SRST but i have a unique situation which forces me to use it.  Do I just add the following voice service voip  allow-connections h323 to h323 allow-connections h323 to sip allow-connections sip to h323 allow-connections sip t...

iptuser55 by Level 6
  • 390 Views
  • 1 replies
  • 0 Helpful votes

I have a 2921 running CME IOS 15.4. I am trying to TFTP to 2921 and it fails. I can TFTP to a 2960.I am using 3com and Solarwinds neither will work with 2921 both work 2960.Anyone have any ideas? I am lost on this. FTP fails as well 

miket by Level 5
  • 131 Views
  • 1 replies
  • 0 Helpful votes