Category: Grandstream no response

Grandstream no response

First you need to get hold of a Hub, connect your unit and a computer to this Hub. Now, the computer can see all incoming and outgoing packets from the unit. Your PC should have a sniffer program like Ethereal available for free download online. Now, simply run the program and filter the trace with the unit's IP address. It's easy to cancel both these functions.

Simply press either the 'transfer' key or 'conference' key a second time. This will terminate the function. If your unit has Syslog feature generally under Advanced Settings pageyou can use it for debugging any issues. If you don't have one, you can enter a broadcast IP address ex. Syslog Level: You can set it to different Levels.

The encoding is based on the alphabetic notation on keypad of your regular phone. For example, there is ABC on the number 2 key. So to encode B, you need to press where first 2 encodes 2 itself, 22 encodes A and encodes B.

Similarly, there is MNO on the number 6 key. So to encode O, you need to press where first 6 encodes 6 itself, 66 encodes M, encodes N and encodes O. Please disconnect all ethernet cables, simply keep power and the phone connected to the Grandstream device. Usually symmetric NAT issue can not be resolved using STUN detection mechanism which is supported by Grandstream products; it can be solved on the media proxy server maintained by VoIP service provider.

grandstream no response

Please check with Voip service provider to obtain this information, and fill in "outbound proxy" setting on the configuration of Grandstream products accordingly. We recommend that "NAT traversal" is always set to yes.

If it says 'NAT type is full cone' you should be fine, but if it says symmetrical or port-restricted, you will need to make adjustments on the intermediate device. Our devices support the following max negotiable bit rate for T. You need to type in 'admin' as the password to enter Advanced Settings and other Account settings page.

That is the password by default. If you forget or lose your own custom password, you will need to Factory Reset the device, login using 'admin' and then reconfigure completely. There are 3 reasons why you might be unable to perform a Factory Reset: - You might be entering an incorrect MAC address.

Generally in this case, the voice prompt will give you Invalid Entry response. For ex. If this setting is incorrect, you will not be able to authorize the phone to your VM account. Check the connection speed 10Mpbs or Mbps with the Internet source router, modem, etc. The negotiation result is up to the other end network device's capability.

Then, you no longer need to care if the Ethernet cable is a crossover cable or a straight one. The most possible problem will be that the phone is not getting responses from the NTP server.

At times a user may receive a " Forbidden" reponse from the server stating that incorrect credentials were provided. This can be easily resolved by re-entering SIP credentials. Another case would be that the device would continuously send registration requests but never receive a response from the SIP server. With the help of the ITSP, a user can confirm whether or not the server is receiving the registration requests.

If and when the server receives the registration request it will send a " Proxy Authentication Required" message to the device. Upon receiving this response from the server, the device will then send another registration request to the server with it's credentials. There are times where the " Proxy Authentication Required" is sent out from the server side, but does not reach the endpoint.

Here are a couple of methods to help troubleshoot this issue: - Disable "SIP ALG" if this is an option on the router - If "SIP ALG" does exist and you are unable to change this feature it is recommended that the router upgrades the firmware to the latest version.There are 9 levels to the GXV volume. The user can adjust the ring volume and call volume according to the environment or personal preference. The GXV is able to adjust the volume quickly using the methods described below. You will see that the volume level icon will be displayed on the LCD.

The three audio channels handset, headset and speaker supported by the GXV are independent of each other. Adjusting the volume for the handset channel will not affect the headset channel. Please note that the voice volume adjusted is specific to the voice volume heard and not the voice volume sent over to the other party.

grandstream no response

When an incoming call comes in, the phone will ring and the caller ID will be displayed on the call screen. At this moment, you have the following methods to answer the call: 1 Pick up the handset and establish the call directly.

Calls will use the headset as the audio output channel. The two parties are able to call each other directly without registering to any SIP server, you would only need to know the IP address of the other party.

If you are in the middle of another call and wish to make a new call to another number, please do the following: 1 In the call window, press the Line button. The current call will be placed on hold and the window will display the current state of all the lines. After the account is selected, dial the number. The IPVideoTalk server will transfer the call to the voicemail box.

Video/Voice/Speech Codecs

The caller can then follow the voice prompt to leave a voice or video message. The message will be saved on the IPvideoTalk server and can be retrieved at anytime.

If two or three calls come in simultaneously, the LCD will only display information for the latest call. If you pick up the call using the normal procedure, you will answer the latest call. If you wish to pick up the other calls first, please follow the steps below: 1 Press the Line button to display the Line Selection window, the corresponding caller information will be displayed. The call will be answered using speaker mode. The dial-plan will restrict the number dialed. You are able to restrict the number dialed out by a particular account.

For example, restrict the phone to call out to a set of numbers with a certain prefix or a set of numbers with fixed digits. The three accounts registered on the GXV have its own independent dial plan. If you have three different registered accounts on the GXV then the three lines correspond to those accounts. For example, Account 1 will use Line 1 by default.

Follow these steps if you wish to call out with a different account on the same line, 1 Press the Line button to access the Line Selection window. You will enter the call screen and hear the dial tone. On the LCD, you will see that the account name will change when you switch accounts. The switching of accounts must be done prior to dialing. Once the dialing action starts, the account used for dialing is fixed and cannot be changed by pressing the Line button.Our Grandstream GXP's will not get an ip from it.

Every other device gets ips from the new dhcp server. Sniffing port 68 on the Windows server shows request packets from the phones BennTech is an IT service provider.

My guess is that you may have already identified the problem. Many come pre-shipped with a VLAN membership. Todd, thanks for your suggestion. I don't think that's the problem, however, as we manually cleared the vlan settings, plus on at least one phone we did a full factory reset before plugging in again. The grandstreams don't have vlan pre-configured, as I can tell.

grandstream no response

If I plug a new one out of the box into a port still pointing via ip-helper in the cisco switch to our old dhcp server Linuxit will get an IP. If we try it on a port going to the new server windowsit gets nothing. Maybe this is a question for the the windows forums rather than VOIP?

If you see the request hitting the DHCP server, and no response, then something funky may be happening on the server although if it is responding to other requests then it is probably finehowever, it could very well be responding to the client and the client is ignoring it. DHCP is a 4 step process.

You may be sending a response back to the grandstream but it might not be acknowledging that the server responded in step Could be something as simple as a firewall on the grandstream I think they do simple nat Wireshark is the only way to know what is truely happening on the server and if it is truely responding and if there isn't anything coming from the grandstream back asking for an address. If there are vlans, the request could be hitting the grandstream and it is attempting to respond back on a vlan that doesn't exist and the request is going into a black hole.

Another option, use a hub, not a switch, just a dumb hub on the end of the grandstream, with a laptop and wireshark To continue this discussion, please ask a new question.

Digium 1, Followers - Follow 91 Mentions 21 Products. Ashley Digium. Get answers from your peers along with millions of IT pros who visit Spiceworks. Popular Topics in VoIP. Which of the following retains the information it's storing when the system power is turned off?

Todd Bennett This person is a verified professional.

grandstream no response

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GS Tutorials - UCM: SIP NAT Settings

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No outgoing calls possible, Grandstream gives 480 reason

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