IP Telephony and Phones

Hi,We have a branch office connected to Head Office Via VPN. Both ends have Public IP. Call Manager, Unity Express, Voice Gateway are @ HO.The IP Phones can register automatically but the problem is that Only HO can hear to the voice of the users fro...

Hi all, I am looking into setting up an intercluster trunk with a sister company who's running CUCM 8.x. The challange I am seeing is that the sister company is using 3-digit extensions x.x.x and I am using 4-digit extensions x.x.x.x. I am seeing ext...

Hi Guys,Please explain the "Loopback Dial-peer" with any example.Regards,        Sachin          

Hi , I am using cisco jabber , in the left bottom corner I see red X and I  get the error  cti server is undefined .what may be the problem ?                  

Good day all,I have to upgrade from ccx7 to 9 but I can not login to the web GUI of the CC as it has a corrupted SQL database. What I would like know is what licenses do I need to get to do the upgrade in terms of (high availibilty) as we have a sub ...

Hi,             When 9971 (Sip9971.9-3-2-10) running CM cluster (8.6.2.23900-10) with video enabled, can't connect to exchange 2010 UM,have to disable  Cisco camera and Video capabilities from phone configuration to make voice mail work, attached is ...

                   I have a client who is currently running consol version 6.1(0_c) server version 6.1(0_a) on Windows XP. They have a requirement to upgrade to Windows 7. Will this version of the attendant client run happily or will it need to be up...

I have recently setup a Cisco 1751-v router with a VIC2-2FXO card and a BT phone line, however after several attempts I am unable to successfully obtain the caller ID. The IOS version is 12.4(19).The configuration of the voice-port is as followsvoice...

Hi Guys ! Hi guys, if I have a problem with my DHCP server and the lease time of the ip phones reach their limit, the IP phones will keep trying ... trying and trying to get a new ip address right ? There is a limit about this tries ? If the Ip Phone...

Hello, simple question I'm sure; however we are having issues figuring out how to enable certain individual Cisco IP phones to ring, for incoming calls.  The way we have these phones in question setup is, only the main line group is assigned to them....