Cisco Collaboration and Contact Center Solutions - Messages for May 2021 year

Aurus Blog

This blog is to share our expertise in Cisco UCM, UCCX/UCCE and Cisco Meeting Server

  • Archive

    «   April 2024   »
    M T W T F S S
    1 2 3 4 5 6 7
    8 9 10 11 12 13 14
    15 16 17 18 19 20 21
    22 23 24 25 26 27 28
    29 30          

How to Reset Cisco IP Phone to the Factory Default

When using Cisco IP Phones, you may face some problems that can only be solved by a factory reset of the phone. The procedure itself is ridiculously simple.

Reset Cisco IP Phone 7900 series

During the factory reset procedure, the following information will be erased:

  • CTL (Certificate Trust List) file;
  • LSC (Locally Significant Certificate) file;
  • Call history (incoming, outgoing, missed);
  • Phone applications.

The following parameters will be set to factory defaults:

  • User configuration settings (ringing sound, screen brightness, volume level, etc);
  • Network configuration settings.

Before Resetting a Cisco IP Phone

Please bear in mind that IP Phones lose all configuration files and phone applications after the factory reset. You should configure your CUCM or CME so that an IP Phone will be able to get new information (configuration and application files) after the reset is over, or else you won’t be able to use the IP phone. This is a necessary step of Cisco IP Phone hardware upgrade, too.

Note that the instructions in the current article were created for devices in a clean lab environment. All the devices have a default configuration. If you are working in a corporate network, please make sure that you understand the possible effect of all commands.

Cisco 7920 Wireless IP Phone

By default, system parameters in Network Configuration and Phone Settings menu are hidden to prevent users making changes that can compromise the phone functionality. To access those parameters, you need to launch the phone in administration mode.

Accessing the Administration Mode

To access the system parameters and hidden phone settings on the Cisco Unified Wireless IP Phone 7920, perform the following steps:

  • Press the Menu key;
  • Press the star (*) key. Press the pound (#) key twice;
  • Press the green receiver (:f09f939e:) key to access the admin mode.

Note: To hide those parameters, reboot the phone or press any of these keys while being in the first level menu, and then press the green receiver (:f09f939e:) key:

  • Any key between 0 and 9;
  • Star (*) key;
  • Pound (#) key.

Resetting Cisco 7920 Wireless IP Phone

To reset Cisco 7920 Wireless IP phone to the factory default, perform the following steps:

  • Proceed to Menu > Phone Settings > Factory Default;
  • The phone will display the «Restore to Default?» message;
  • Press OK. All settings are deleted now.

Proceed to Menu > Network Config to change the wireless network parameters.

Cisco 7940 and 7960 (also 7911, 7975)

Perform the following steps:

  • Proceed to main Date/Time window;
  • Press **# to unlock the network configuration;
  • The network configuration symbol should be unlocked now. If it is not, leave the main window and press **# again;
  • Press 3 key (or scroll) to move to «Network Configuration» option;
  • Press 33 (or scroll) to move to «Erase Configuration» option;
  • Press Yes;
  • Press Save.

Sometimes you may need to perform a factory reset of a phone when the password is set. Let’s go through the reset process using Cisco IP Phone 7975 as an example:

  • Cut the power to the phone (unplug the power cable, or Ethernet cable in case you have PoE);
  • Push the pound (#) key and turn the power on while holding it;
  • Wait for a while. The phone begins its power up cycle;
  • Some buttons (Headset | Mute | Speaker) will start flashing. Then you can release the “#” key;
  • After that, you will see a prompt to enter something on the screen on your phone;
  • You have 60 seconds to enter the key sequence: 123456789*0#. It commands the device to reset all parameters;
  • After you have entered the sequence correctly, the phone will display the following message: “Keep network cfg? 1 = yes 2 = no” Press 2 to reset the phone network configuration. Press 1 to keep the current network settings;
  • The phone has been reset. Over time, it will reboot, connect to TFTP server, download the required firmware and register with CUCM again;
  • If you entered a wrong code (instead of 123456789*0#), the phone will be started normally without resetting. If you accidently enter any key in a sequence twice in a row, e.g. 1234456789*0#, the phone will accept this code and start the reset procedure anyway;
  • If you didn’t enter anything, after 60 seconds the phone will be started normally.

Cisco 7941 and 7961

To reset Cisco 7941 and 7961, perform the following steps:

  • Unplug the power cable and the plug it in again;
  • Immediately push the pound (#) key and hold it;
  • After Headset, Mute and Speaker buttons will start flashing, release the # key;
  • The phone is waiting for the reset sequence;
  • To reset the phone, enter the key sequence: 123456789*0#;
  • If you accidently enter any key in a sequence twice in a row, the phone will start the reset procedure anyway. If you enter a wrong code, the phone will be started normally without resetting;
  • If you have entered the sequence correctly, the phone starts the reset procedure and displays the following message: “Upgrading”.

Cisco 7942 and 7962

To reset Cisco 7942 and 7962, perform the following steps:

  • Unplug the power cable and the plug it in again;
  • Immediately (before the speaker button starts flashing) push and hold the pound (#) key;
  • Hold it until line buttons start flashing yellow;
  • Release # and enter 123456789*0#;
  • If you accidently enter any key in a sequence twice in a row, the phone will start the reset procedure anyway. If you enter a wrong code, the phone will be started normally without resetting;
  • The line buttons start flashing red, and phone begins the reset procedure;
  • Don’t turn off the phone until it completes the factory reset and displays the main screen.

Reset Phones with 3CX Phone System Support

If your 3CX Phone System supporting phone doesn’t work and you would like to start the configuration process from scratch, you can reset your phone to factory default.

Cisco 303, Cisco 502g, Cisco 504g, Cisco 508g, Cisco 509g, Cisco 525g

Proceed to the phone menu > select Option 14 to reset phone settings > press OK.

Grandstream GXP 2100, GXP 2110, GXP 2120, GXP 2124, GXP 1405, GXP 1400, GXP 1450

Proceed to the phone menu > Settings > Reset to factory. Press OK to confirm factory reset.

Grandstream GXP 2010, GXP 2000, GXP 2020

Proceed to the phone menu > Settings > Reset to factory. Enter the MAC address of the device and press OK.

Yealink SIP-T20, SIP-T22, SIP-T26, SIP-T28, SIP-T32, SIP-T38

Press OK and hold it for 10 seconds. Then press OK to confirm factory reset.

Or proceed to the phone menu > Settings > Advanced Settings > Enter the phone password (the default password: admin) > Select “Reset to Factory”, and press OK. Confirm the factory reset.

Polycom IP 301, 501, 550, 601, 650 and 670

Press 4, 6, 8 and * keys and hold them. You’ll have to enter the admin password to perform the factory reset (the default password: 456).

Polycom IP 320, 321, 330, 331, 335, 430, 450, 560 and 7000

Press 1, 3, 5 and 7 keys and hold them. You’ll have to enter the admin password to perform the factory reset (the default password: 456).

Polycom IP 4000, 5000 and 6000

Press 6, 8 and * keys and hold them. You’ll have to enter the admin password to perform the factory reset (the default password: 456).

Polycom VVX 1500

Press 2, 4 and 6 keys and hold them. You’ll have to enter the admin password to perform the factory reset (the default password: 456).

That’s it. Now you can easily reset your problematic phone.

Good luck.

Cisco Secure Remote Working Tools

With pandemic in the picture, the interest in remote working tools has noticeably increased. But, as it turned out, not all tools can provide the required level of security and confidentiality. These features are exactly what Cisco’s communication solutions are aiming at. The company has conducted a series of webinars on such systems.

A Kiev Cisco system engineer Igor Sukaylo has started his presentation with several examples of the perpetrators’ ways to mess with your communications. E.g., spoofing their number to call anyone from “your” phone. Voice recognition problem has also been solved. In December, 2019 there has been a not so loud announcement on AI being able to imitate a subscriber’s voice. A Ukrainian start-up has created a piece of software that was able to replace a subscriber’s voice with any other voice on the fly. Combining these two possibilities, you can give any order to anyone. Actually, no public means of communication can be trusted. So, many companies and departments have started using corporate unified communications (UC).

The speaker has considered several measures that can be taken in this situation. One of them was implementation of cloud services. Cisco can deploy an infrastructure on customer’s site, or even implement a hybrid system combining cloud and local infrastructures. In particular, WebEx Rich components belong to hybrid infrastructures, enabling integration of a cloud service not only with a calendar, directories and corporate Key Management System, but also with phone and video components, located on a company’s site.

As a pilot project, Cisco can implement a full spectrum of remote and collaborative working tools: Jabber, Expressway, conferences. There will be almost no limitation to the number of participants and conferences, held simultaneously or altogether, without any functional restrictions. Restrictions may only arise due to the computing resources, though the requirements are really modest.

Concerning Jabber and MRA (Mobile and Remote Access) development: since version 12.5, the voice traffic between devices has been being passed through a point-to-point protocol. So, there is no “ground - cloud” transition for two communication devices. No delays, zero packet loss, higher quality. Voice and signaling traffic is being encrypted with a 264-bit key, which is sufficiently break-proof for today.

Nowadays you can simply bring home any video phone, any video terminal, literally any device that has been connected to the corporate infrastructure. And the public Internet access will remain.

According to the speaker, Cisco flagship video conferencing tool Meeting Server is the cheapest as well as the most advanced solution. It is also compatible with any device, and it can be deployed on a virtual server. Licensing is implemented not by the number of participants, but by the number of concurrent conferences.

Since self-isolation is important for all organizations, the question of interdepartmental contacts raises. You can’t visit your colleagues, and simple phone calls are not as efficient as personal interactions. Cisco can build unified interdepartmental communications, and a regular DNS on the Internet may serve as a central node. The connection is encrypted, of course.

Banking has been chosen for practical examples. In banks, there are services that require visual identification. To avoid personal visits, you can deploy Cisco Meeting Server (CMS) in a bank. A manager sends a client a link with a password. The client follows this link, a browser prompts them to enter the password, and a video session with the manager starts.

Banking also requires some protection from spoofed calls. You can build your own channel for that using a WebEx Teams-based cloud service. It provides an open API, so customers can embed the required WebEx Teams components into their own mobile applications. Clients can call a corporate contact center, send a message, start a video call, and (which is unique for now) a bank can call the client’s mobile app.

Distant meetings are important, too. They can’t be implemented with plain video conferences. That’s not enough. One of Cisco partners has a Meeting system, and Cisco has integrated its video conference in it. So, remote participants are going to have projects, resolutions and other documents. The whole process will be recorded on video.

Going back to WebEx, the speaker has noted its main advantages. First of them was the ease of use; second, a possibility to be integrated with different office applications, e.g. CRM systems; third, being able to work with external participants as well as with internal ones. You can use any device to connect to WebEx. In fact, WebEx is a universal platform.

WebEx is not just a remote meeting tool. It also includes WebEx Meetings, WebEx Training Center, WebEx Event Center and WebEx Support Center. All these products are optimized for specific functions. Such specialization has appeared more than 10 years old, in order to meet the requirements of Cisco clients.

WebEx can be integrated with several business applications, including Slack, which is a relatively popular communication platform. However, you can’t use Slack for video conferencing. WebEx Meetings is integrated with Slack on the level of commands. You can also integrate Slack with Google Gmail. If a customer has G Suite, native integration with G Suite is possible. And integrating WebEx Meeting with Google Class creates a kind of a light version of Learning Management System, increasing the usability for the teachers and students.

WebEx (specifically, WebEx Meetings) can also be integrated with some Microsoft products. When you are planning a conference or a meeting via Outlook, you can simply enter “@WebEx” in the “Location” field. Cisco calendar connector, integrated with the corporate environment, will send this request to WebEx, and all participants will get a corresponding link. Essentially, WebEx can be integrated with Skype for business. WebEx Meetings and Microsoft Teams integration is also possible.

Many customers are interested in video device integration, since Microsoft has changed its video protocols (without backward compatibility, as usual). There are several options. First of all, Cisco has made an agreement with Microsoft about integrating Microsoft Teams and Cisco terminals via CVI (Cloud Video Interop). The second option, already mentioned above, is integrating Microsoft Teams and WebEx Meetings. The last option is integration through CVI, connecting two clouds (WebEx cloud and Microsoft Teams cloud) that have a connector with a transcoder between them. As you plan a meeting, the calendar sends a request to WebEx cloud. On each terminal you can see “One Button to Push”. Click it to join the video conference. The video terminal calls Microsoft Teams, and Microsoft Teams clients can participate in this conference. However, all calls pass through the WebEx cloud before being transferred to Microsoft Teams.

So, what’s the difference between CVI connection and WebRTC (Web Real Time Communications) connection? In the first case, you can only participate in meetings within your company. In the second case, customers can join any Microsoft web conference. However, CVI performs two-sided content transmission, and WebRTC will only pass the information from Microsoft to customers. All devices support CVI, and only modern devices support WebRTC. There are other differences, particularly, the registration procedure.

Concerning the corporate infrastructure integration, you can connect computers and mobile software, use any video terminal to call WebEx, perform a callback to any SIP and video terminal. And, as the speaker has emphasized, you can integrate with any corporate PBX for free. There are also paid services, such as callback and accepting calls from landline numbers.

Finally, new WebEx devices have been presented. The old system has been replaced with a new three-screen system. Two of the screens are for video. Such solution is intended for important negotiations. For the first time, a handy co-working tool for video conferences has been implemented. It was achieved by involving one more camera that is being set up against the video terminal. However, this product is for big meeting rooms. You can also use WebEx cloud service to share your notebook’s content on the board. According to Igor Sukaylo, the hit of 2020 will be the integration of WebEx Room Kit Mini with Samsung Flip TV, which has a special built-in software turning a TV into a full-blown video terminal for collaborative working.

Besides that, another new device has been released: WebEx Room Kit USB. It is basically a light version of Room Kit Mini with no touch pad, just a remote control device. It can be used as an advanced web camera. You can also upgrade it to Room Kit Mini, if need be.

A new Cisco device named WebEx Desk Pro is designed for personal work. Unlike DX80, it is for one or two persons only. It is not a replacement, DX80 is going to remain on sale. WebEx Desk Pro features include wireless access to content, getting and sharing content, and a 27-inch display with 4K resolution. It comes with a USB-C port, which makes it a dock station, and a main monitor with sensor routing options. There are also a command mode (in English only), sensor routing to Windows PCs, auto crop and background replacement.

This solution can be used as a web camera as well as a remote collaborative working tool, e.g., for telemedicine.