35results about How to "Avoid call failure" patented technology

The invention discloses a selection method and device for a called access domain and relates to the technical field of communication. When a called client accesses an IMS network from a wifi network to carry out voice communication, the IMS network is enabled to determine a called access domain of a called user so that a call failure of a voice communication service can be prevented. The method includes the following steps: when an invite message sent by a calling client is received, an access type identification of the called client is triggered and obtained and whether the identification is a wifi identification is detected, wherein the wifi identification represents that the called client accesses the IMS network from the wifi network; and when the access type identification of the called client is determined to be the wifi identification, the invite message is routed in an IMS domain so that the invite message is routed in the IMS domain to the client. The selection method and device for the called access domain are mainly applied to a selection procedure of a called access domain.

An auditing method and system of bearer end points are disclosed in the communication field, which make MGC to quickly finish auditing lots of bearer end points in short time. An audit request message is transmitted from MGC to MGW. The audit request message asks for auditing multi-bearer end points and audit bearer end points are identified in the audit request message. When MGW receives the audit request message, it detects states of corresponding bearer end points and returns by three methods states of bearer end points which are requested audit. The first method is that an audit response message carries state of bearer end point which isrequested audit; the second method is that bitmap is added in the audit response message, and states of all bearer end points which are requested audit are carried with the bitmap to notify MGC; the third method is that states of bearer end points which are requested audit are returned to MGW by group.

The invention discloses an ENUM / DNS recursive query method, device and system to solve the problem of query failure due to inconsistent query modes set by the secondary ENUM / DNS server on the calling side and the secondary ENUM / DNS server on the called side. After the secondary ENUM / DNS server on the called side receives the query message from the secondary ENUM / DNS server on the calling side forwarded by the primary ENUM / DNS server, it determines the query content expressed in the query condition format in the query message If it is inconsistent with the query conditions configured by the second-level ENUM / DNS server on the called side, send request feedback to the second-level ENUM / DNS server on the calling side through the first-level ENUM / DNS server. The query content expressed by the configured query conditions matches the request, and the query is performed based on the fed back query content.

The invention discloses a method and a device used for automatically testing high-privilege progress by a designated user. The user's testing privilege required by the high-privilege progress is higher than the testing privilege of the designated user. The method includes: after the designated user logins a system, copying a privilege escalation tool to a system directory, and enabling the high-privilege progress to have the required user's testing privilege; executing a testing case of the high-privilege progress; judging whether calling of a system interface corresponding to the testing case requires execution of the designated user or not; if yes, simulating the designated user, and calling the system interface corresponding to the testing case via the simulated designated user. The method and the device used for automatically testing the high-privilege progress by the designated user have the advantages that the problem of requiring high privilege during testing is solved simply and effectively, failure in system interface calling after privilege escalation is avoided, the automatic testing scene is enriched, and the automatic testing method is optimized.

The invention provides a method and device for setting a call transfer number. The method comprises the following steps: determining whether identity identification cards in at least two identity identification cards installed in a terminal have network service signals; when a first identity identification card in the at least two identity identification cards has the network service signal, setting the call number of the second identity identification card as the call transfer number of the first identity identification card; sending a call transfer setting request to a base station through the first identity identification card, so that the base station transfers a call request to the second identity identification card when confirming that the call request of the first identity identification card satisfies call transfer conditions. In the technical scheme, when the call request initiated by the terminal to the first identity identification card cannot establish a call with the terminal, the call request can be automatically transferred to the second identity identification card so as to call the second identity identification card through the network so as to establish a call connection with the terminal, and thus the call success rate of the terminal is increased.

The invention discloses a method for managing an A interface trunk circuit with an external transcoder. The managing method, by means of a mode to transfer information among a base station controller, a mobile switching center and the transcoder through signaling links, manages the A interface trunk circuit timely when changes happen to the circuit states of the three parties, namely the base station controller, the mobile switching center and the transcoder, and can timely ensure that the circuit states of the base station controller, the mobile switching center and the transcoder in the GSM system are consistent and at the same time avoid the phenomenon that the A interface trunk circuit is wrongly designated to complete voice transmission when faults occur to the circuits which resultsin call failure.

The invention discloses a bearer releasing method based on QoS. The method comprises the steps of monitoring QoS attribute information which corresponds with a current service bearer of a terminal by a base station; determining a fact that the bearer is a default bearer or a newly established bearer for the terminal according to the QoS attribute information, setting the threshold of a corresponding bearer releasing timer according to different determining results; after a fact that communication between UE and a core network is interrupted and the value of the bearer releasing timer exceeds the preset threshold, transmitting a bearer releasing request to the core network; and after a bearer releasing response returned from the core network is received, and updating the threshold of the bearer releasing timer. The invention further discloses a bearer releasing device and equipment for realizing the bearer releasing method.

A CSFB-based calling method, comprising: registering to a 4G network on a base station and accessing a first cell; detecting a paging message delivered by the first cell, and redirecting to a 2G frequency point when the paging message delivered by the first cell is detected; receiving a call control message delivered by the first cell; marking the first cell as unavailable when the call control message is not connected, and switching to a second cell; and receiving a paging message delivered by the second cell. In addition, also disclosed is a CSFB-based calling device.

The invention provides a method and a device for call answering of a mobile communication terminal. The method for the call answering of the mobile communication terminal comprises the following steps of: (A) when an incoming call of a preset telephone number is received, hanging up the phone and starting a timer; (B) determining whether a user selects to call back, if so, turning into the step (C); (C) determining whether the timer arrives a time, if so, turning into the step (D), otherwise, turning into the step (E); (D) calling back the telephone number; and (E) continuously timing by the timer, and turning back to the step (C), wherein the timer is set to avoid the condition that the telephone number is still in a conversation state during callback.

The invention discloses a method and a device for inquiring and dialing a telephone number. The method includes: obtaining a phone tag set of a phone tagging party; in response to a user's query request for a calling phone number, querying the calling phone number from the phone tag set of each phone tagging party; according to the query result, Identify valid calling phone numbers. Through the above technical solution, the user can intuitively understand the marking status of each calling phone number in each phone marking party, thereby effectively avoiding call failure due to the use of the marked calling phone number and effectively improving the dial-through rate .