Voice over IP

Dear allI am using Cisco AS5xxx as the media gateway to carry voip calls from IP to PSTN. When checking the accounting logs i see some calls with Calling-Station-ID is "Restricted" . And then the PSTN network drop these calls.How can i solve this pro...

hi all,Our company want to purchase AS5400 universal gateway to replace our Portmaster3. Of course, we want the platform supports CT3 ingress trunks.So we order the trunk card CT3. Actually, we still want add the CT1 card on the chassis to connect an...

I am a network administrator for a big company and I am in charge for all the network and VoIP equipment.The problem is that the VoIP routers we use, 2800 series, encounter big problems when a power failure happens. Flash card get easily corrupted an...

CIsco 2811I have a problem on isdn bri connection customer can't use the line sometimes. The only thing that I was able to detect is that the ISDN layer 2 goes down, deb isdn q921 show that). Is it possible understand if aslo Layer goes down ? It see...

   I'm using Cisco PGW2200 solution ver.9.4.1 in nailed mode. When i got IAM, PGW sending Address Complete Message which contains such parameter as "Called party status". By default MGC setting  this parameter to "0 no_indication_default". here is ex...

Cisco 3700 with 124 serial interface4 channelized E1/pri port .how many calls this router is able to manage at the same time?I mean   dialplan is implemented to manage TDM to VOIP and also IP to IP call routing.In case of all  4  PRI channel are is u...

hiwe have 3 ipbx, 2 cisco and i siemens. the siemens has a hg1500 card that support native sip. now the cisco makes calls to the siemens without any issues. but we can seem to make any calls to the cme. do i have to enable any sip gateways or pass th...

I support a 3rd party dialer. In this case, our system first dials the user through their auto attendant and extension before placing the next call followed by the bridging of the 2 calls. The client has Cisco Call Manager 8.X and Cisco Unity Connect...

                   hiiplease i need your helpi have two sites(HQ and Branch) i want to do voice recording at HQ and am using MiaRec softwarethe problem is what kind of tunnel that will pull/allow the voice packets from branch to HQ for recordingall t...

Hi AllOur service provider has left and we need to make urgent changes to the UC - does anyone know the admin password recovery for the US540 ?

Hi Experts, I've a strange issue and any help is appreciated.I've used three AS5400 in different ways:- H.323 gateway- SIP gateway- MGCP gateway controlled by PGW (current scenario)I've loaded different IOS during years but in all these environments ...