IP phones can reduce broadband service costs to a certain extent, and at the same time ensure the quality of the call, and IP phones support the transmission of network data, voice and images. In order to ensure the safe use of corporate IP phones, it is necessary to separate voice calls and other data, so that not only there will be no interference, but also not easy to be attacked by network hackers, so it can effectively prevent the leakage of corporate secrets. The following is a brief introduction and analysis.
First, the advantages of IP telephony.
1. Save bandwidth. The bandwidth consumed by circuit switched telephones is 64Kkbps. The IP phone only needs 6-8Kkbps or even lower than 2.4Kkbps, which saves bandwidth and reduces costs.
2. Low call costs. Due to the reduction in cost, the cost of the call also drops, especially for long-distance communications.
3. Intelligence can be easily integrated. The IP telephone network inherits the intelligent module of the computer network, and can flexibly control signaling and connection, which is conducive to the development of various value-added services.
4. Open system structure. The protocol system of IP phones is open, which is conducive to the standardization and interconnection of products of various manufacturers.
5. Integration of multimedia services. The IP telephone network supports the transmission of voice, data, and images at the same time, laying the foundation for the comprehensive provision of multimedia services in the future.
Second, how do companies use IP phones safely.
1. In order to ensure the security of voice data, one of the best ways is to separate voice data from ordinary data. In this case, we can use virtual local area network technology to logically distinguish voice traffic from data traffic. Due to the separation of these two types of data traffic through virtual local area network technology, hackers who illegally attack the corporate network cannot see the voice traffic.
2. Since voice communication often uses special protocols or ports, virtual local area networks can be divided according to protocols or ports. Voice traffic and data traffic are transmitted in different LANs, and the two parties cannot interfere with each other. In this way, hackers are even more unable to capture the data in the voice traffic LAN through the data traffic LAN. Therefore, the use of virtual local area network (Vlan) technology can perfectly protect the security of voice calls.
3. Many network voice communications are realized by certain software, such as Skype or MSN instant chat tools. Therefore, if the security of voice communication is to be improved, enhancing the security of these software itself is also one of the important tasks, so as to reduce the probability of the software itself being attacked.
4. Apply the latest patch to the operating system. Generally speaking, if hackers want to attack voice communication software, they usually need to exploit the loopholes of the operating system first. However, if the operating system is secure, the security of the voice software can also be guaranteed to a certain extent. Therefore, as an enterprise information security manager, you must develop the habit of patching the operating system in time. This is not only required for voice communication security, but also necessary to prevent other attacks.
5. Encrypt the signaling protocol. This is similar to the principle of file transfer. If hackers snoop on corporate data through the Internet, they only need to encrypt the files in transit. In this way, data leakage can be effectively prevented. Because even if they get the data, they only see a bunch of garbled codes because of the encryption.
First, the advantages of IP telephony.
1. Save bandwidth. The bandwidth consumed by circuit switched telephones is 64Kkbps. The IP phone only needs 6-8Kkbps or even lower than 2.4Kkbps, which saves bandwidth and reduces costs.
2. Low call costs. Due to the reduction in cost, the cost of the call also drops, especially for long-distance communications.
3. Intelligence can be easily integrated. The IP telephone network inherits the intelligent module of the computer network, and can flexibly control signaling and connection, which is conducive to the development of various value-added services.
4. Open system structure. The protocol system of IP phones is open, which is conducive to the standardization and interconnection of products of various manufacturers.
5. Integration of multimedia services. The IP telephone network supports the transmission of voice, data, and images at the same time, laying the foundation for the comprehensive provision of multimedia services in the future.
Second, how do companies use IP phones safely.
1. In order to ensure the security of voice data, one of the best ways is to separate voice data from ordinary data. In this case, we can use virtual local area network technology to logically distinguish voice traffic from data traffic. Due to the separation of these two types of data traffic through virtual local area network technology, hackers who illegally attack the corporate network cannot see the voice traffic.
2. Since voice communication often uses special protocols or ports, virtual local area networks can be divided according to protocols or ports. Voice traffic and data traffic are transmitted in different LANs, and the two parties cannot interfere with each other. In this way, hackers are even more unable to capture the data in the voice traffic LAN through the data traffic LAN. Therefore, the use of virtual local area network (Vlan) technology can perfectly protect the security of voice calls.
3. Many network voice communications are realized by certain software, such as Skype or MSN instant chat tools. Therefore, if the security of voice communication is to be improved, enhancing the security of these software itself is also one of the important tasks, so as to reduce the probability of the software itself being attacked.
4. Apply the latest patch to the operating system. Generally speaking, if hackers want to attack voice communication software, they usually need to exploit the loopholes of the operating system first. However, if the operating system is secure, the security of the voice software can also be guaranteed to a certain extent. Therefore, as an enterprise information security manager, you must develop the habit of patching the operating system in time. This is not only required for voice communication security, but also necessary to prevent other attacks.
5. Encrypt the signaling protocol. This is similar to the principle of file transfer. If hackers snoop on corporate data through the Internet, they only need to encrypt the files in transit. In this way, data leakage can be effectively prevented. Because even if they get the data, they only see a bunch of garbled codes because of the encryption.