Recent posts under tag volte

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Hi what are the customer facing KPI for 3G and LTE ? Means how to check the customer experience for 3G and 4G users ?

posted Sep 21, 2016 by Dipanshu Kulshrestha

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VoLTE: How many maximum VoLTE calls can be supported at a cell that is deployed on 10 Mhz bandwidth and FDD mode ?

posted Sep 9, 2016 by Harshita

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LTE: For the CS fall back what messages are exchanged between IMS, LTE and GSM nodes to continue VoLTE call ?

posted Aug 23, 2016 by Harshita

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SIP: Does all the SIP control messages passes through SIP proxy-server or only a subset of SIP messages?

posted Aug 14, 2016 by Vikram Singh

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SIP: Why does proxy server respond with 100 trying message ? What if it does not do this ?

posted Aug 14, 2016 by Vikram Singh

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VoLTE: Why I-CSCF and S-CSCF has interface with the HSS and for what purposes it is used ?

posted Aug 5, 2016 by Ganesh

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VoLTE: At which stage of SIP registration, P-CSCF establishes secure IP connection with UE ?

posted Aug 5, 2016 by Ganesh

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IMS: When a dedicated bearer is established for a VoLTE call and which node initiates it ?

posted Aug 5, 2016 by Ganesh

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SIP: What is the functionality of ENUM node that residents in the SIP network ?

posted Aug 3, 2016 by Ganesh

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IMS: When the following response codes are used during an established IMS call session ?

posted Aug 1, 2016 by Ganesh

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LTE: How does VoLTE work and what all signalling messages have been defined for this feature ?

posted Jun 17, 2016 by Harshita

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What is IP Multimedia core network subsystem flag in IMS signalling

posted Jun 14, 2016 by Yeshwanth

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Doubts on VoWiFi functionality .

posted Apr 29, 2016 by Sarjit Singh

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WiFI calling over trusted(TWAG/S2a) network.

posted Apr 27, 2016 by Sarjit Singh

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How VoLTE charging works?

posted Apr 8, 2016 by Chinmoy Padhi

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Ericsson / Huawei / NSN for HLR and HSS

posted Feb 13, 2016 by Dan Betler

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Do we have any VoLTE standardization by ITU-T?

posted Feb 10, 2016 by anonymous

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Do you know standard value of QoS of VoLTE?

posted Feb 10, 2016 by anonymous

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What is the difference between ISIM and USIM in LTE/VoLTE?

posted Feb 8, 2016 by anonymous

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VOLTE: How the VoLTE call establishes for LTE network and legacy network ?

posted Jan 19, 2016 by Vikram Singh

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VoLTE: How does VoLTE service work between two operators and within the same operator ?

posted Jan 4, 2016 by Harshita

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VoLTE : In what terms, voice call quality differ from 2G/3G to LTE ?

posted Jan 4, 2016 by Harshita

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VoLTE Emergency EPC wireshark logs required

posted Dec 19, 2015 by Alkesh Mehta

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IMS: Function difference between MRFC and MRFP components of Media Resource Function ?

posted Dec 7, 2015 by Harshita

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LTE: Why does need a bearer of QCI 5 to exchange SIP signalling messages ?

posted Dec 4, 2015 by Ganesh Kumar

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LTE: What is the role of Media Resource Function (MRF) and Application Server (AS) while establishing VoLTE call ?

posted Dec 4, 2015 by Ganesh Kumar

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Policy counter subscription by the PCRF to OCS

posted Dec 4, 2015 by Pdk

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IMS: Why is IP sec tunnel established between UE and P-CSCF ?

posted Nov 25, 2015 by Alok

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What are all identifiers used for an UE in IMS network ?

posted Nov 7, 2015 by Harshita

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Is it necessary HSS and S-CSCF both the nodes belongs to home network for an IMS call ?

posted Nov 6, 2015 by Vimal Kumar Mishra

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IMS : Why P-CSCF node can not send message directly to S-CSCF ?

posted Oct 29, 2015 by Alok

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Which node takes care of VoLTE charging ?

posted Oct 27, 2015 by Harshita

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VoLTE: Does a network need to establish a separate default bearer for IMS call ?

posted Oct 24, 2015 by Harshita

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VoLTE : What are the roles for P-CSCF, I-CSCF and S-CSCF nodes during establishing voice call ?

posted Oct 22, 2015 by Harshita

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VoLTE : Apart from the LTE standard nodes like SGW, PGW and PCRF , what are all nodes involve to provide VoLTE ?

posted Oct 22, 2015 by Harshita

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LTE : Is there any specific requirement at eNodeB to support the IP Multimedia System (IMS) ?

posted Oct 19, 2015 by Vikram Singh

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LTE: Does IMS takes part in voice transmitting or is it omitted?

posted Jul 23, 2015 by anonymous

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Differentiated paging for VoLTE

posted Jun 26, 2015 by anonymous

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What is speech path in case "UE 4G - UE 4G" call in the same network?

posted Jun 16, 2015 by anonymous

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VoLTE: Why UE is not sending PCO option in attach request?

posted Apr 14, 2015 by Alkesh Mehta

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How can I improve Volte handoffs for Ericsson network?

posted Dec 13, 2014 by Mike Chanicka

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Why VoLTE power consumption is high as compare to CSFB?

posted Nov 10, 2014 by anonymous

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Traffic on RBs in VOLTE?

posted Aug 27, 2014 by anonymous

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What is the advantage of using VoLTE and not useing CSFB?

posted Aug 20, 2014 by Yogeshwar Thakur

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Is QoS has really been implemented in LTE commercial networks?

posted Jun 29, 2014 by Cellularsme .

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Which node control the ringing timer in a VoLTE call?

posted Jun 25, 2014 by anonymous

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What could be the size of VoLTE packet?

posted Jun 16, 2014 by Vishal

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IMS: Does the PGW has static configuration of P-CSCF or dynamic ?

posted Jun 11, 2014 by Vimal Kumar Mishra

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During Roaming in Volte/IMS Home Network P-CSCF will be used or visited network?

posted May 15, 2014 by Pardeep Kohli

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Voice Over LTE Generic Access (VoLGA) full explained

posted May 15, 2014 by Rahul Chandel