IP Telephony and Phones

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One of our users was in concall (he was taken in concall by other party). His call was dropped and the error was displayed as "CM down Features disabled". On Cisco site, they stated that this error comes while making calls. But we saw it immediately ...

K_require by Level 1
  • 7380 Views
  • 6 replies
  • 0 Helpful votes

I have a problem which appears to be impossible. Set up customer to work in U.S. goes to Zurich can web in to give credentials but phone merely sits in registration state.

whanson by Level 2
  • 220 Views
  • 1 replies
  • 0 Helpful votes

Hi, We have Unity 4.0(5.) in our environment. We have licenses for 50 users and 16 ports. We have installed unity on Dell machine. We need to know how many more licenses can we purchase? (what is the max capacity of Unity 4.0(5)) and from where to ob...

K_require by Level 1
  • 210 Views
  • 1 replies
  • 0 Helpful votes

Hi, I've got a 2811 with 3 E1 voice cards. Each voice cards, has got 2 ports. Each port is connected to different telco. The gateway is operating in H323 mode. I can receive incoming calls perfectly fine, and also make outbound calls. Occasionally,...

hannyong by Level 1
  • 486 Views
  • 2 replies
  • 0 Helpful votes

I have a new region setup on my call manager where I am setting phones from a branch. In the event that the local PRI goes would like to reroute calls out my HQ gateway. The HQ gateway is H323 and works with outbound calls from our default regions....

wbarren by Level 1
  • 231 Views
  • 1 replies
  • 0 Helpful votes

ATA

Can anybody tell me the maximum length of telephone cable that can run from the ATA device to the analog phone? we need to give an extension to the security point about 100 m away outside the building. fiber is costly though protect from lightning. s...

pgamage by Level 1
  • 227 Views
  • 1 replies
  • 0 Helpful votes

Hi folks,I'm trying to get my head around the command...switchport voice vlan dot1pHere's what I think I understand...The device and the IP phone use the same subnet.The phone uses VLAN0The Device uses Native VLAN of switchportThe phone and device ca...

d.hodgson by Level 1
  • 1624 Views
  • 6 replies
  • 0 Helpful votes