The ringing duration of the called party is too long when AR2240 functions as the IP PBX and the downstream IP phone is the calling party

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Problem description:
The AR router used as the PBX connects to the downlink IP phone and uplink IMS using 3G. When the IP phone calls a user on the IMS, the called party's phone rings after a long period of time.

Procedure:
Configure the same clock source for the AR and IMS to ensure time consistency. Enable debugging of the AR and IMS and use the IP phone to call a user on the IMS. Then analyze debugging information to check whether processing of the AR or IMS is too long. Through analysis, processing of the AR is too long.

Check the configuration.
callprefix 98512
prefix 98512
call-type category basic-service attribute 0
digit-length 5 20
The value of digit-length is incorrect. Set the maximum length of a number that can be parsed to 7.

Causes:
1. The processing time of the AR is too long.
2. The processing time of the IMS is too long.

Suggestion:
1. Configure the same clock source for all devices when the AR router is connected to other devices and faults about delay-sensitive services need to be located. Then obtain debugging information to determine the processing time of each device.
2. Correctly configure digit-length. A large value affects efficiency and a small value affects the correctness of number analysis.

Other related questions:
The ringing duration of the called party is too long when AR2240 functions as the IP PBX and the downstream IP phone is the calling party
Problem description: The AR router used as the PBX connects to the downlink IP phone and uplink IMS using 3G. When the IP phone calls a user on the IMS, the called party's phone rings after a long period of time. Procedure: Configure the same clock source for the AR and IMS to ensure time consistency. Enable debugging of the AR and IMS and use the IP phone to call a user on the IMS. Then analyze debugging information to check whether processing of the AR or IMS is too long. Through analysis, processing of the AR is too long. Check the configuration. callprefix 98512 prefix 98512 call-type category basic-service attribute 0 digit-length 5 20 The value of digit-length is incorrect. Set the maximum length of a number that can be parsed to 7. Causes: 1. The processing time of the AR is too long. 2. The processing time of the IMS is too long. Suggestion: 1. Configure the same clock source for all devices when the AR router is connected to other devices and faults about delay-sensitive services need to be located. Then obtain debugging information to determine the processing time of each device. 2. Correctly configure digit-length. A large value affects efficiency and a small value affects the correctness of number analysis.

Can the system play the busy tone when the called party under the U1981 is busy?
When the called party under the U1900 series voice gateway is busy, the system plays the busy tone to the calling party. If the busy tone is not played, please contact Huawei after-sales engineers for help. The prerequisites for playing the busy tone are as follows: The user does not have multi-call or call waiting service rights and the user's IP phone (if used) cannot enable the call waiting function.

Does the eSpace 8950 IP phone support three-way video calling in the eSpace UC solution
The eSpace 8950 IP phone does not support three-way video calling, but only supports point-to-point video calling.

Why cannot my IP phone display the information (including the department and name) of the peer party when I place or receive a call
Verify that on your IP phone, the contact information has been saved or the corporate directory address has been configured. If the contact information has been saved or the corporate directory address has been configured on your IP phone, your IP phone searches your contact list or corporate directory for the calling or called party's information when you receive or place a call. Then, your IP phone displays the calling or called party's information that is searched out.

How to enable the long number instead of the short number of an outgoing call from an intra-office user of the U1960 to be displayed to the called party
1. Bind a long number to the intra-office short number. config modify subscriber dn 5000 longdn 68905000 //Configure long number 68905000 for intra-office short number 5000. 2. Add an outgoing prefix and select to display the long number of the calling party, that is, set if4pstnprefix to yes. config add prefix dn 0 callcategory basic callattribute local subpbxno 0 cldpredeal no cldmap no officeselectcode 0 minlen 0 maxlen 32 clipredeal no climap no uselongcli no if4pstnprefix yes

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