Log InSign Up

16 Cisco Voice Engineer Interview Questions (With Example Answers)

It's important to prepare for an interview in order to improve your chances of getting the job. Researching questions beforehand can help you give better answers during the interview. Most interviews will include questions about your personality, qualifications, experience and how well you would fit the job. In this article, we review examples of various cisco voice engineer interview questions and sample answers to some of the most common questions.

Cisco Voice Engineer Resume ExampleUse this template

or download as PDF

Common Cisco Voice Engineer Interview Questions

What experience do you have with Cisco Voice products?

Cisco Voice Engineers are responsible for designing, implementing, and troubleshooting Cisco voice and unified communications products. Therefore, it is important for the interviewer to know what experience the candidate has with these products.

Example: “I have experience with a variety of Cisco Voice products, including Cisco Unified Communications Manager (CUCM), Cisco Unity Connection, and Cisco IP Phones. I have also worked with other VoIP platforms such as Asterisk and FreeSWITCH. In addition, I have experience with a number of voice codecs, including G.711, G.729, G.722, and Opus.”

What Cisco Voice products are you familiar with?

The interviewer is trying to gauge the engineer's familiarity with Cisco Voice products and how they might be able to apply them in a real-world setting. This question is important because it allows the interviewer to get a better sense of the engineer's skill set and whether they would be a good fit for the position.

Example: “I am familiar with a variety of Cisco Voice products, including the Cisco Unified Communications Manager (CUCM), Cisco Unity Connection, and Cisco IP Phones. I have also worked with a number of other voice products from other vendors, including Avaya, Nortel, and Siemens.”

How would you configure a Cisco Voice product?

The interviewer is trying to gauge the interviewee's technical expertise with Cisco Voice products. It is important for the interviewer to know if the interviewee is able to configure Cisco Voice products because this is an essential skill for the position.

Example: “There is no one-size-fits-all answer to this question, as the configuration of a Cisco Voice product will vary depending on the specific product and the specific needs of the customer. However, some tips on configuring a Cisco Voice product include understanding the customer's voice requirements, understanding the various Cisco Voice products available, and having a good working knowledge of Cisco IOS.”

What troubleshooting steps would you take if a Cisco Voice product was not working properly?

One of the key responsibilities of a Cisco Voice Engineer is to troubleshoot issues with Cisco Voice products. This question allows the interviewer to gauge the engineer's knowledge and experience in troubleshooting Cisco Voice products. It is important to be able to identify the root cause of the issue and take the necessary steps to resolve it.

Example: “There are a few troubleshooting steps that can be taken when a Cisco Voice product is not working properly. First, check the power and connectivity to the device. Next, check the configuration of the device to ensure that it is correct. Finally, check the logs of the device to see if there are any error messages that can help identify the problem.”

What is your experience with VoIP?

The interviewer is asking about the Cisco Voice Engineer's experience with VoIP because it is an important technology for many businesses. VoIP can save businesses money on their phone bills, and it can also provide features that traditional phone systems cannot. A Cisco Voice Engineer should have a good understanding of how VoIP works and how to troubleshoot common problems.

Example: “I have worked with VoIP for over 5 years now. I have experience with a variety of VoIP platforms and protocols, including SIP, H.323, and MGCP. I have also worked with a variety of VoIP hardware, including Cisco IP Phones, Asterisk PBXs, and VoIP gateways. I have a good understanding of the various issues that can impact VoIP quality, such as jitter, latency, and packet loss. I am also familiar with the various methods that can be used to troubleshoot VoIP problems.”

What is your experience with SIP?

The interviewer is asking about the Cisco Voice Engineer's experience with SIP because it is an important protocol for VOIP networks. SIP is a signaling protocol that is used to set up and tear down voice and video calls. It is important for the Cisco Voice Engineer to have experience with SIP because they will need to be able to configure and troubleshoot SIP-based VOIP systems.

Example: “I have worked with SIP for about 2 years now. I have experience setting up and configuring SIP Trunks, as well as troubleshooting any issues that may arise. I am also familiar with various SIP-related protocols, such as RTP, SRTP, and SDP.”

What is your experience with H.323?

Cisco Voice Engineer is responsible for configuring, deploying, and troubleshooting Cisco VoIP systems. H.323 is a standard for VoIP systems that allows for interoperability between different vendors' systems. It is important for the interviewer to know the candidate's level of experience with H.323 in order to gauge their ability to configure and troubleshoot Cisco VoIP systems.

Example: “I have worked with H.323 for over 5 years now and have a good understanding of how it works. I have also implemented it in a few customer networks.”

What is your experience with QoS?

An interviewer would ask "What is your experience with QoS?" to a Cisco Voice Engineer to find out if the engineer has experience working with Quality of Service, which is a networking technique used to ensure that network traffic is managed effectively. QoS is important because it helps to ensure that voice and video traffic is given priority over other types of traffic, such as data traffic, to help ensure that calls are clear and video is not choppy.

Example: “I have experience with QoS in both Cisco IOS and NX-OS. I am familiar with the MQC and Modular QoS CLI. I have configured QoS for various types of traffic, including VoIP, video, and data. I have also troubleshot QoS issues.”

What is your experience with NAT?

NAT is important for a Cisco Voice Engineer because it allows them to control how traffic is routed through a network. By understanding NAT, a Voice Engineer can optimize traffic flow and reduce congestion.

Example: “I have experience working with NAT in Cisco routers. I am familiar with the various types of NAT (static, dynamic, PAT, etc) and how to configure them. I have also worked with NAT in other devices such as SonicWALL firewall and Linux iptables.”

What is your experience with firewall configuration?

When configuring a firewall, it is important to consider the types of traffic that will be passing through the firewall. Cisco Voice Engineers are familiar with the types of traffic that are typically used in voice communication and can configure the firewall to allow this traffic while still protecting the network.

Example: “I have experience with firewall configuration and I am familiar with the different types of firewalls available. I know how to configure a firewall to allow specific traffic through and how to block specific traffic. I am also familiar with the different types of attacks that can be used against a firewall and how to protect against them.”

What is your experience with call routing?

The interviewer is asking about the Cisco Voice Engineer's experience with call routing because it is an important function of the job. The engineer must be able to route calls correctly in order to ensure that the callers are able to reach the intended recipient. This includes being able to troubleshoot any problems that may occur with the call routing system.

Example: “I have worked with call routing for a few years now and have experience with both on-premises and cloud-based solutions. I am familiar with various call routing algorithms and can configure systems to route calls based on various criteria such as least cost, shortest delay, or other factors. I also have experience troubleshooting call routing issues and can often quickly identify and resolve problems.”

What is your experience with call admission control?

Cisco Voice Engineer is responsible for designing, implementing, and troubleshooting Cisco VoIP systems. Call admission control is an important part of VoIP systems, as it helps to ensure that only calls that can be completed are admitted to the network, and that call quality is maintained by avoiding over-utilization of resources. Asking about an applicant's experience with call admission control helps to gauge their knowledge and expertise in designing and managing VoIP systems.

Example: “I have experience with call admission control in a Cisco VoIP environment. I have configured and implemented call admission control on Cisco routers and switches. I have also troubleshot call admission control issues in a VoIP network.”

What is your experience with dial plans?

There are a few reasons why an interviewer might ask a Cisco Voice Engineer about their experience with dial plans. First, the interviewer wants to know if the engineer has the necessary skills to configure and troubleshoot dial plans. Second, the interviewer wants to know if the engineer understands the various options available when configuring a dial plan, and how to select the best option for a given situation. Finally, the interviewer wants to know if the engineer is familiar with the common problems that can occur with dial plans, and how to troubleshoot them.

Example: “I have worked with dial plans for a few years now and have experience with both Cisco and Asterisk systems. I am familiar with the various components of a dial plan, such as route patterns, translation patterns, and voice gateways. I also have experience troubleshooting issues with dial plans, such as call routing problems and audio quality issues.”

What is your experience with voice mail integration?

There are a few reasons why an interviewer would ask this question to a Cisco Voice Engineer. Firstly, voice mail integration is an important part of any VoIP system. It allows users to access their voicemail messages from any phone, and it can also be used to route calls to voicemail if the user is unavailable. Secondly, voice mail integration can be used to improve customer service. By being able to quickly and easily access voicemail messages, customers can get the information they need without having to wait on hold or speak to a customer service representative. Finally, voice mail integration can help to reduce costs. By routing calls to voicemail when the user is unavailable, businesses can avoid having to pay for long-distance or international call charges.

Example: “I have experience with voice mail integration in a few different environments. I have integrated Cisco Unity Connection with Cisco Unified Communications Manager, as well as other third-party PBX systems. I have also written custom scripts to integrate voice mail systems with CRM applications.”

What is your experience with unified communications?

Cisco Voice Engineer should have a good understanding of unified communications in order to be able to properly install and configure Cisco voice products. Unified communications is important because it allows businesses to communicate more effectively and efficiently. It can also help reduce costs by eliminating the need for multiple communication tools.

Example: “I have been working with unified communications for about 5 years now. I have experience with a variety of UC platforms, including Cisco, Avaya, and Microsoft. I have also worked with a number of different VoIP protocols, such as SIP, H.323, and MGCP. In my current role, I am responsible for designing, implementing, and troubleshooting UC solutions for our customers.”

What other Cisco products are you familiar with?

There are many reasons an interviewer might ask this question, but one possibility is that they want to gauge the candidate's familiarity with Cisco products. This is important because it can help the interviewer determine whether the candidate is a good fit for the position. If the candidate is not familiar with other Cisco products, it may be difficult for them to troubleshoot issues that arise.

Example: “I am familiar with a number of Cisco products, including the Cisco Unified Communications Manager (CUCM), the Cisco Unity Connection (CUC) voicemail system, the Cisco IP Phone portfolio, and the Cisco Telepresence line of products. In addition, I have experience with a number of other Cisco products such as the Cisco ASA firewall, the Cisco VPN concentrator, and the Cisco switch line.”

Related Interview Questions