top button
Flag Notify
    Connect to us
      Site Registration

Site Registration

MT Call from 2G/3G to VoLTE User

+1 vote
640 views

How does a MT Call comes from Legacy Network to VoLTE Registered User? Will It comes with a SIP INVITE or as a CS Service Notification? Any Spec References?

posted Apr 1, 2017 by Anand Yadav

Looking for an answer?  Promote on:
Facebook Share Button Twitter Share Button LinkedIn Share Button

Similar Questions
0 votes
VoLTE: How does voice call establish when one party using VoLTE technology and the other one using 2G ?

Is there any node in the network which makes bridge between VoLTE and 2G system to serve voice call between two users ?

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

VoLTE is the prominent solution of voice call in the LTE network. VoLTE uses IMS infrastructure to provide voice services in LTE network. IMS network is not new in the telecom, it is quite old solution for voice call across the different network (circuit switch / packet switch ). How does IMS network provide better services through LTE devices as compare to 2G/3G ?

0 votes
Can a VoLTE Call Data flow on IMS Default Bearers?

In Other Words VoLTE Call Established and No Dedicated Bearers established by NW, Is it Possible the call will be stable ? Can It use IMS Defaulr Bearers for the Call?

+1 vote
IMS: When a dedicated bearer is established for a VoLTE call and which node initiates it ?

Which of the network node initiates dedicated bearer creation for the VoLTE call ?

0 votes
In IMS VoLTE call, how to identify IPs assigned to phone numbers from control traffic (SIP, SDP …)?

In IMS VoLTE setting of a telecom network, what part/field of which type of packet (SIP, SDP, others...) gives authentic information of MSISDN-IP mapping? From a sample traffic, I need to find out information from control traffic about what IP is assigned to what phone number. In the sample traffic, I see a lot of protocols (SIP, SDP, RTP, DIAMETER, ISUP, ....). I require to find out IPs assigned to phone numbers. I know RTP flows between end devices (phones), but I need to find out IPs before the call is established...

...