Topics tagged sip

Topic	Replies	Views	Activity
VoWiFi: Why the ePDG is designed to be behind the PGW? CORE sip , core	69	5909	December 4, 2021
How SIP drop call rate is calculated? CORE call-flow , sip , core	21	5244	May 27, 2021
What is CSFB and SRVCC in LTE? 4G LTE csfb , srvcc , 4g-lte , mobility , selection , reselection , sip	11	45754	December 18, 2023
What are the reason Blocked Call Caused "SIP invite failure" in VoLTE? 4G LTE volte , 4g-lte , sip	18	3381	April 15, 2024
VoLTE Mute 4G LTE volte , 4g-lte , mos , sip , pucch-pusch , optimization	27	6531	April 4, 2024
How to switch your career from a Core telecom professional to a Cloud professional Telco Cloud sip	7	5530	October 19, 2021
When VoLTE Call (QCI1-2-5) and Data Session (QCI6-9) established in LTE, at which point allocation of QCI done? 4G LTE qos , 4g-lte , call-flow , sip	8	5148	March 24, 2022
Why does invite not received at MT during drive test if handover are happening? CORE sip , core , optimization	1	125	March 14, 2024
Favorites Site Feedback call-flow , sip	1	6039	July 3, 2021
When default bearer of IMS signaling is released in VoLTE call? 4G LTE volte , 4g-lte , sip	35	6638	February 18, 2024
In which particular cases UE sends SIP 500 Sever Internal Error in Uplink during VoLTE call setup? 4G LTE volte , sip , core	23	2971	February 15, 2024
VoLTE drops with Cause Value of Regular Deactivation 4G LTE 4g-lte , optimization , volte , sip	2	251	January 27, 2024
Why sometime when UE is in 3G we see SIP messages exchanged between UE and network? 3G / 2G 3g-umts-wcdma , sip , core	1	335	September 28, 2023
High number of N.NsaDc.SgNB.Add.Fail.Radio.UeCapability in some cells 5G NR 5g-nr , 5g-nsa , endc , sip	29	3057	September 27, 2023
How I-CSCF can get S-CSCF address? CORE core , sip	4	314	September 12, 2023
Does UE need to indicate FGI bit 3,7 as supported for SMS over IMS? CORE call-flow , sip , core	19	1871	September 11, 2023
What can be the reason of UE sending bye message with cause code DRB lost? CORE 5g-nr , optimization , vonr , sip	3	599	August 31, 2023
What does drop type 'SIP Bye Request' in tems mean? 4G LTE 4g-lte , sip , pucch-pusch , optimization	56	7092	June 13, 2023
VoLTE block call due to SIP 500 Internal server error 4G LTE 4g-lte , core , volte , sip	3	2210	June 2, 2023
SIP message 401 unauthorized, call drop event Transport Networks codec , call-flow , sip	30	8543	June 17, 2020
How will UE shift its codec from EVS to AMR and AMR to EVS? RAN volte , codec , vonr , sip	16	4227	May 11, 2023
Possible reasons for "SIP Cancel" during call setup failure cases CORE sip , core	4	2725	April 27, 2023
VoLTE Features Discussion 4G LTE volte , drx , 4g-lte , pucch-pusch , codec , sip , link-budget	5	6124	April 16, 2023
Details of SIP response codes CORE sip , core	3	1542	April 4, 2023
What is an ideal CST of VoLTE call? 4G LTE volte , drx , 4g-lte , sip	14	7153	February 16, 2023
Is there a 3GPP mentioning that if there is no TAU update UE cannot initiate a service? Specs & Protocol Testing reselection , sip , optimization	31	2366	January 18, 2023
IMS, VoLTE and Vo5G (VoNR) 4G LTE volte , vonr , 4g-lte , sip	0	1216	June 29, 2022
What could be the possible causes of SIP Precondition Failures? CORE sip , core	0	390	November 3, 2022
What happens to call on 5G SA if 404, 500 error code received? 5G NR vonr , 5g-nr , sip	2	927	October 15, 2022
Handsets reporting wrong MNCs issue Devices devices , sip	3	362	October 15, 2022