[sipcore] Support automotive call transfer scenarios in the IETF SIPCORE WG
"Kitty Huang(黄玉洁)" <kitty.huang@quectel.com> Tue, 13 June 2023 08:53 UTC
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From: "Kitty Huang(黄玉洁)" <kitty.huang@quectel.com>
To: "sipcore@ietfa.amsl.com" <sipcore@ietfa.amsl.com>
Thread-Topic: Support automotive call transfer scenarios in the IETF SIPCORE WG
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Date: Tue, 13 Jun 2023 08:53:01 +0000
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Archived-At: <https://mailarchive.ietf.org/arch/msg/sipcore/7Pru91RLrMOENXHH42ZR2Jyd7pA>
Subject: [sipcore] Support automotive call transfer scenarios in the IETF SIPCORE WG
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Dear SIPCore chairs and SIPCore members, The new SIP response code helped us a lot. Here's an example from us in action. sip_error_code is the open parameter for solving the voice call problem of Neusoft. Customer requirement: Whether the call is hung up normally or abnormally can be determined based on the hang-up event information. Original solution: The end_reason reported by the call information callback function in QuecOpen SDK identifies the hang-up reason. QL_VOICE_END_REASON_E has enumerated the normal hang-up reasons. The other values indicate an abnormal hang-up. Problem background: The original solution cannot cover all voice call scenarios in the actual testing process, which caused wrong judgement when some calls were hung up. New solution: Qualcomm suggests opening sip_error_code parameter to solve this problem. Only when the reported end_reason is CALL_END_CAUSE_PROTOCOL_Q850_ERROR (that is 318 in SDK), the system checks the value of sip_error_code. If sip_error_code is 16, it is a normal hang-up. The attachments are the end_reason list and problem analysis conclusion. -----邮件原件----- 发件人: sipcore@ietfa.amsl.com <sipcore@ietfa.amsl.com> 发送时间: 2023年6月9日 16:29 收件人: Kitty Huang(黄玉洁) <kitty.huang@quectel.com> 主题: Confirm: sipcore@ietfa.amsl.com:ZILitAHb605V:RsyUDJ0gGALasABzZgo0cEhGwiJmQ756222CRQ The ietf.org mailing-list server has received a list posting from kitty.huang@quectel.com to sipcore@ietfa.amsl.com with the subject 'Support automotive call transfer scenarios in the IETF SIPCORE WG' As the sender address isn't subscribed to the list, and has not been confirmed earlier, we have to request a confirmation of the address. To confirm the address, send a message to sipcore@ietfa.amsl.com, with the same subject line as this message. (Simply sending a 'reply' to this message should work from most email interfaces, since that usually leaves the subject line in the right form. The reply's additional "Re:" is ok.) For diagnostic purposes, this sender email confirmation step has ID: ZILitAHb605V If you do not wish your posting to the list to go through, simply disregard this message. Questions to ietf-action@ietf.org.
- [sipcore] Support automotive call transfer scenar… Kitty Huang(黄玉洁)