Voice over IP

Hello,I am trying a call from telephony server through Cisco gateway, but as I can see in wireshark trace went telephony server send TCP SYN, Cisco reset it, and all is failed. What I missed in configuration ?thanks in advanceCisco_AS5350XM_SIP#sh ve...

Hi. I have a problem with ISDN QSIG. My setup is: A---PBX(Nortel PBX)------7206----Leasedline----7206----PBX(Nortel PBX)---B I am facing problem in making outgoing calls from A end through the PRI (1/0) which is connected to Nortel PBX. but am able t...

Hi,I am trying to make an inbound call from Telco-->AS5350-->SIP Server and below are the logs on debug csm voice.Apr 3 05:51:42.891: VDEV_ALLOCATE: 2/10 is allocatedApr 3 05:51:42.891: 1.starting digit collect: reset dnis_collected & fap_notifyAp...

Dear sir,iam having cisco 2821 router and VIC2-2E/M cord ,so plz give me some examples of configuration.Thanks&Regardssrini

This is probably an easy one but here it goes...We have the following setup:phones --> CAT3750 --> C2851 --> WAN (eigrp) -->C2821 --> CAT6509And we need to enable QoS.As far as I know the following is need:all ports that hte phones are connected to o...

I know this is probably a silly question but I would like to verify. Devices such as ATAs and VG248s that converts calls to analog, I've notice have only maximum call of 2. Is there a way around this or another way I have analog maximum calls set to...

Hi,The attached file was from cisco output interpreter tool. As a work around, I was trying to load a new IOS image on flash, but it shows "not enough space available" I issue the command show flash (see details below)show flash-#- ED ----type---- --...

Hi,When there is an incoming E1 R2 CAS call directed towards an FXS, the call does not complete. The cisco does collect the digits on the incoming side (CAS) but does not send it to the FXS. Is there any specific configuration that needs to be done f...

My question for you, experts, is that I know IP phone can registered to call manager via IP address, public IP, but can it be registered via hostname (DNS)? If so, how

Pease all i need ios release for router 2811 which support AIM-ATM-Voice-30

I am having an issue only with 7921G phones that when a call is transferred to an ext that is forwarded to a Nextel phone it does not always work. I think this is timing issue because nextels will play a "please wait while the nextel customer is loca...

I have an existing HP Procurve network. We recently acquired a branch off that has a 2801 and a VWIC2 T1 module. The HP routers only need a T1 card. Our PBX is at the main office and rides on its on VLAN. Do I need a PVDM card in the 2801 at this...

Dears. Sorry for my pitty english :D.I have a Cisco 2811 with Cisco Callmanager Express, with two phone (ip communicator) running skinny protocol. I have also a client SIP running in my mobile telephone. The problem is not posible when there is a inc...

I have 2 remote locations connected via frame/atm links currently with no QoS configs and potentially running VoIP. Is AutoQoS the simpliest and/or best solution, for voip communication across the WAN(frame/atm) if no other QoS is required ?Thanks fo...

Suppose you have some pvc configured on a physical interface, or some subinterfaces, point-to-point with an associated pvc.All the traffic comes out from the same physical interface, so same buffer and hardware queue for all pvcs.If you send all voip...