Voice over IP

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 ...

Dear All,I am not sure what is the problem while i always get code 404 Not found in Status line of SIP trace when the call disconnect incase end user did not pick up the phone. But different In reason hearder field i got Q.850,cause=31.What could be ...

I am running MeetingPlace Express and every so often I run into issues where if someone calls the number, it connects, but I hear no audio.  I am wondering if this is a limitation of MeetingPlace or an issue with the number of concurrent calls?We hav...

PLAN:Configure two SIP providers with my Cisco ISR 2811 using CME 8.6sip.fongo.comsip.voicediscount.comAll incoming and local outgoing calls using fongo, while long distance & international via voipdiscount.I have successfully got fongo.com service t...

I Have 4 nos. ISDN PRI E1 Channel for my IP Contact center enterprise environment. Number are as folllowing51561XX30199XX23751XX23750XXI have 70 Agents with Internal exetnsion number starting from 4000 to 4070.(no DID mapped)I wanted to route outgoin...