IP Telephony and Phones

The fact that CM servers have a 1024 limit on ARP table entries is a well-known issue. I found the following blurb in several of the administration guides, though:---------------Do not install Cisco Unified Communications Manager in a large Class A o...

Hey Everyone,I'm trying to monitor the activity of specific extensions in RTMT (to see if they are being hit by a Hunt List/Line Group), but I noticed that some but not all of the lines are available to monitor in RTMT under Performance >> Subscriber...

Hello,I can't seem to get a straight answer on this question.  I was wondering if any special license is required for phone to phone video capability for the 8900/9900 phones, either in the UCL or the CUWL licensing model...Thanks.-Dave

Dear allI have a question , our customer bought two callmanager and one unity connection with cuwl license ,verion is 7.1.5 at last year . and this year they want buying a new unity connection for Vmail system HA and upgrade software of all uc system...

I have my first UC Proxy setup project going, phone registers, and makes calls, but no way audio, no ring back. I see the call connections on the firewall, but they dont complete.I assume the UC proxy is mainly for applications where the entire call ...

Hello,I have some challenges with a VPN setup for voice traffic I recently configured for a client.I have at the HO (Head Office) the following:- 1800 router- Avaya phones and Gateway- 1MB radio internet accessAt the BO (Branch Office), I have:- 871 ...

I have a feeling i'm missing something simple here but i'm unable to make conference calls between two internal extensions on the same site. after pressing the conference button and dialing thenumber it just give me a beep and then does nothing. is t...

Hi,So this is the network descp..the core switch in this branch site has connectiviety to our HQ through WAN links which is throught BT. we also have few access switches in the branch site  which connects back to the core. none of these have any qos ...

I've just had the please of moving some of our offices in Asia onto our Australia Call Manager. In Australia they use 0 for secondary dial tone, in Asia they use 9. My delima is this, we have an ARC console server there that when set up they used DNs...

Hi All, I will like to ask quick question about DSCP marking and priority. I have a router and I am marking all mi traffic into five classes (EF,AF41, AF31,AF31,AF11) at the ingress interface. At the egress interface (with no egress policy) of same r...

Hi I am trying to configure cisco 2951 router for inbound and outbound , i am able to make calls though mpls network but not though E1 (TDM) line, please find the diagram i send, guide why the incomming / outgoing calls are not working..? whcih chann...

Dear allIin cucm subscriber intsllation is finish/ after installation .unfortunatily need to change the ip address sub after changing ip using this command show network etho link detected is stage is nonot able communicate other systems even gateway

HI all,I have one pub and one sub after changing the ip address of sub show relication status is belowadmin:utils dbreplication runadmin:utils dbreplication runtimestateDB and Replication Services: ALL RUNNINGCluster Replication State: Replication st...

Hi all,I have MGCP GW, registered with CUCM 8.5, the gatway has 3 fxo they are grouped with one Route Group, this route group is member of route list, when I try to make a call from this route list, the call always go through one fxo port 0/2/2, and ...