H11-811 Exam Questions

eSpace U1900 series unified gateways provide a built-in voice system.

Which of the following statements about the single-node network is CORRECT?

There is only a fixed-line number on the business card of customer managerA. The fixed-line number is bound to customer manager A's office phone and mobile phone. When a customer d...

A company deploys a U1981 unified gateway, BMU, and CDRServer. The administrator wants to query CDRs within a time segment. Which of the following methods can the administrator use...

Which of the following statements are CORRECT about the narrowband trunk? (Multiple Choice)

When the U1900 PRA trunk is faulty, you need to check whether the indicator on the SCU board is normal.

Company A plans to deploy the automatic switchboard service, through which users can dial the desired extension numbers or dial 0 to connect to the secretary deployment as prompted...

In U1900 series unified gateway, which of the following statements are CORRECT about the relationships among prefixes, office routes, office route selection codes, and trunks for e...

To centrally deploy and upgrade eSpace IP phones in DHCP Option 246 mode, make a upgrade policy file and specify the upgrade range and policy.

Faxes can be sent and received through Internet in transparent transmission orT.38 mode. The difference is that faxes are transmitted as voice packets over Internet in transparent...

If two IP phones A and B register with the same U1960, which of the following statements is CORRECT?

Which of the following methods cannot be used to back up and restore the U1900 version?

Under the same network conditions, which of the following codec provides the best voice quality?

In U1900 serials unified gateway, which of the following statements about the number change feature are CORRECT?

An eSpace 7950 supports a maximum of 12 concurrent calls and 12 login accounts.

Which of the following statements about Password-based Call Restriction Service is CORRECT?

Which of the following is NOT a SIP protocol feature?

Which of the following statements about IP phone configuration mode is INCORRECT?

Which of the following statements are CORRECT about signaling functions of registers? (Multiple Choice)

IP phones can adapt to different networking modes, including UC2.X, UC2.0, IMS+UC, and IMS. Therefore, the networking mode needs to be set based on the actual networking. The defau...

eSight, DNS server, and DHCP server have been deployed in the live network of an enterprise. If 200 IP phones are added, which of the following methods cannot be used to configure...

For U1900, which of the following steps must be involved for configuring a PRA trunk? (Multiple Choice)

Which of the following statements is CORRECT About the IVR function of U1900?

The U1981 unified gateway provides a web management system to enable maintenance personnel to perform (). (Multiple Choice)

In U1900 series unified gateway, which of the following models supports dual main control board? (Multiple Choice)

In the U1900 connecting to PSTN with the El trunk, the Tx and Rx indicators are off but the call service still fails. To locate the fault, which of the following operations are req...

A company plans to purchase a U1900 unified gateway. To support 1000 conference participants at most, A company should choose().

In the H.323 protocol suite, which protocol is responsible for call control?

Analog phone A registers with a U1960 unified gateway through the IAD proxy. IP phone B also registers with the U1960. If the U1960 encounters an unexpected power failure when A an...

For U1900, which of the following steps are involved for configuring a SIP trunk? (Multiple Choice)

To centrally deploy and upgrade eSpace IP phones in DHCP Option 246 mode, set Option246 of the DHCP server to ().

U1900 series unified gateways use highly-integrated SIP Softswitch as its core, supports both narrowband and broadband services, and enables the access of multiple terminals includ...

If IP phone A and analog phone B directly register with the same U1960 unified gateway, which of the following statements is CORRECT?

Which of the following functions are supported by the eSpace IFT solution? (Multiple Choice)

When adding new POTS users under a IAD, which type of number should be configured in the U1900?

Which of the following statements are CORRECT about the instant conference service in U1900? (Multiple Choice)

Which of the following statements about IAD configuration mode is INCORRECT?

The CDRServer can run on the SUSE Linux operating system.

Which of the following statements about IAD196 functions and features are CORRECT? (Multiple Choice)

Which of the following statements are CORRECT about R2 signaling? (Multiple Choice)

About number change for the U1900, which of the following statements are CORRECT?

If the LOS indicator () on a board of the IP PBX, signals are lost.

For PRA trunk interconnection, timeslot 16 functions as a ().

Which of the following methods can be used for differentiating between call rights of different users on U1900? (Multiple Choice)

Entities such as GK, MCU, and Terminal are defined in the H.323 communication protocol suite. The MCU is used for address translation and access control,

If a company director that has enabled the secretary service uses any shared line to call phone numbers of customers, the same number is displayed on the phones of the customers.

Through the eSight version file management function, version files of IP phones can be updated and upgraded in batches.

By default, the interval for refreshing the registered SIP server is set to ()s on an IP phone.

U1900 series unified gateways are at the access layer in the eSpace UC solution.

The SCU board of the U1960 supports a maximum of ( ) users.