Voice over IP

Well my customer has cisco ATA on the private IP , natting is done by the Router and is behind the Natted router. I cannot do anything on the customer router like port forwarding or IP mapping , I know in that way I would have 2 way calls. But I can ...

Well my customer has cisco ATA on the private IP , natting is done by the Router and is behind the Natted router. I cannot do anything on the customer router like port forwarding or IP mapping , I know in that way I would have 2 way calls. But I can ...

Incoming calls work fine, but when I try to dial from a Cisco phone out PRI my 5ESS doesn't recognize the called# format and I get a fast busy with the first digit after my 9 to get secondary dial-tone. Below is relavent config information and my Cis...

I'm trying to forward all incoming calls to the SRST to the operator extension, but with no luck. I have SRST with FXO ports. Calls from IP Phone to outside work fine. But when calls are coming from the PSTN to the FXOs, they cannot be forwarded to a...

Does anyone know what ports I need to open for h323 voip traffic. I opened up ports tcp 1720 and udp 16384-32767, when I do this I can get one way audio and also can make one side of the call ring. Any ideas? Everything works fine with a static addre...

I have a 2610 router running ios 12.2.15T with 16/64 RAM. I can run any TCL script that I download from cisco website that supports TCL 1.0 but I can not run scripts that supports 2.0. what do I need to do so that my router can support TCL scripts v...

HI, I have configured QoS over serial port with a policy-map and it has a class-map for a ACL with precedence critical, do i need it ? is it good ? I have configured IP TCP and RTP header-compresion over the ports. The problem is that one link has a...

Hi all experts,I'm going to buy a NM-HDV2-2T2/E1 module.I'd like to know if I need to add PVDM2-64 module in this card to support 60 simultaneous calls with the highest VoIP compression.Thanks for ur help

Jan 26 21:54:09.871: %DSPRM-5-SETCODEC: Configured codec 14 is not supported with this dsp image.Jan 26 21:54:16.323: %DSPRM-5-UPDOWN: DSP 7 in slot 1, changed state to upI have this error on Cisco3745 which is configured as voice gateway.Network:Cis...

Running 12.2(15) static started appearing yesterday on all calls inbound or outbound. Dialing 4 digit IP - IP works fine. The static is only happening at one out of six locations. Really looking for a staring point to start troubleshooting.Thanks J...

Good day everyone,I'm a real newbie with voice-over-ip so I beg for you patience.I have a 827-V router and I'd like to use it for voip.I found a company who offers Voip/Voice conversion so I could receive normal calls through my voip network and make...

Our remote 1750 has FXO connected to PABX. WAN connection via FR. HQ router is 3650 with Call Manager 3.1 all route pattern are in place. And PABX HQ is connected to AS5300 as our gateway to local calls.From the remote side, once they dial a number t...

Has anyone out there successfully integrated RightFax with Cisco Voip? It's working at our site; however, we constantly have problems. We have been experiencing several problems with inbound and outbound faxes. Issues include: blurred faxes, faxes...

Here is the scenario. We have a customer who has tow routers connected to an ATM cloud via an OC3 interface, and around 200 remote offices connected to the central office via Frame Relay data links (all of then). Recently, our customer implemented Vo...