IP Telephony and Phones

Hello Guys,I have 400 telephones in my network (6921/7942), and, without reason various phones, started have problems.The problem is:If I take the hook, the phone is mute. But, I can call to extension and the phone ring normally. When I answer a call...

On a particular call setup, I'm seeing:ISDN Se0/2/0:15 Q931: RX <- PROGRESS pd = 8  callref = 0xBF3B     Progress Ind i = 0x8088 - In-band info or appropriate now available Google tells me that a 0x8 progress indicator tells me there is inband inform...

I have a cube configured like thisPROVIDER----(SIP)CUBE(H323)----CALLMANAGEROutgoing calls are working well. Incomming calls fail. In incomming calls the phone rings once and the call is disconnected.I attach the cube config and ccsip and ccapi debug...

Is this even posible? Because what I'm experiencing right now is that using MGCP and having an Attendant DN pointing to one local phone, when a call from outside comes, the phone rings but I can see from the calling phone that the callee already answ...

I would like to hang a HP wireless access point off port fa0/1/8 and deliver PoE to it.The A/P is to be assigned 192.168.100.252.Currently fa0/0 has the ip address 192.168.100.251/24.Ports fa0/1/0 to fa0/1/7 are in voice vlan 100.Appropriate section ...

Hi,We have multiple sites in multiiple countries that will be rolling out VoIP but we only have two locations having vpn termination point. If the users login remotly via VPN, they will not be using their home Voice Gateways and will be using the one...

Hi All,Hoping someone can provide explicit dial-peer for Hong Kong PSTN dials.LocalEmergencyIDDLong Distance (if any)Free-CallDirectory ServicesHave a project coming up need to configure CoR.greatly Appreciete any assistancethank you

Dears,I have a new installation with call manager version 9.0 and I need to integrate the call manager with the Active directory.Problem Description:================I have made the integration with the LDAP with custom attributes (user initials=middl...

I am hoping that someone can help me out here. I am at a complete loss, and wasting more time trying to figure out this issue that should be so simple, but made so impossibly difficult. I have 2 phones that I purchased and spent a good deal of money ...

Hi, can someone point me to a document which shows which QoS markings the voice gateways sets for signalling with CUCM.I need to verify the QoS settings we have configured in our policymaps.We run into issues where we cannot completely estabslish a c...

Dear ExpertsOnce again i am in stuck in strange scenario i put real IP on my call manager and successfully register my softphone to the subscriber and also able to make calls to the extension register through the LAN of my company but here no voice i...