Voice over IP

Dear All ,  I have one Voice Gateway cisco 3800 and call manager 7 . i want to block all incoming Call from outside to EXT :111, 222 , 333 and make this EXTs available just  internal or inside the CLUSTER  . i tried to use translation profile on the ...

Hi..I forgot the password of voicemail!!How I can reset or find the password?I'm using CCM v6 with unity server.I'm the administrator of servers but I'm not profficional with voice system.Thanks in advance guys Sent from Cisco Technical Support iPhon...

I have a cisco 2811 router with 8 ports FXS which functions as SIP voice gateway, it is registered to a SIP SERVER, but I can only make calls to telephone and not cell phone, and receive calls from the PSTN either.Please could help me.Router#sh runBu...

Hello,I have a client who has communication problems, the voice on the phone freezeI just call, and I understood perfectly, but he hears me very very badly, and this happens on all the communication that begins. An idea or it may come?Cordialement, B...

I want to limit calls to my gateway from the remote gateway using his IP address. I want to use voice source-group. For example:voice source-group testaccess-list 1carrier-id source testid access-list 1 permit 95.100.5.5dial-peer voice 1234 voipmax-c...

I have setup SIP connection on Cisco5400 and I face the problem "no ringing and call failed when destination accepted a call".I have investigated this case with my partner and I find something wrong on SIP call flow as belowCisco 5400               P...

Our SIP providers is saying we should configure our UC520 to communicate with their proxy sip devices for more security between us and them. can anyone give me an ideas of how to configure ALG from UC520 to a SIP proxy. The current setup works fine b...

Hi all,I wonder how many concurrent VOIP calls can handle Cisco ASA 5510, any idea?Gegham

hi i have an mpls nework with equipment cisco 2821, 2901 and 2801, and i have problems with fax calls, i configured the fax protocol t38 in all routers but when i want to send a fax to the 2821 equipment from either 2801 and 2901, the protocol t38 is...

Dear AllI downloaded the CUCM 8.5 IOS upgrade from cisco.So how can I have My software  feature License? because it's missing.What should I do?

I found a really sueful service to make nd configure our own VoIP thru our ECS server.Would be feasible simple steps to folllow..Kindly try this outwww.voip-sip-sdk.com/p_29-how-to-configure-ozeki-voip-sip-sdk-with-sipx-ecs-voip.html

We have changed IP addressing of  our VoIP phones from Public Range to Private 10.x.x.x. Our Main Site IP  addresses change took place before I started so don't know if some  configuration change was made on CUCM 6.1.3 to make it work. I changed  the...

Hi,Is it perhaps possible that i can activate a command (ios) from a Cisco phone (Callmanager Express) ?Perhaps by the service button.. or perhaps with a tcl script? so that you call to the AA for example and you can then activate the tcl script..Som...

Hi Everyone,we have customers who is complaining about disconnected calls when muted, it seems that the calls are dropped from the cisco 5850 or pgw2200 after exactly three minutes, is there some parameter to level this up, I've been looking all arou...