When calls are between 2 devices on a VoLTE network quality is good as the network is built for voice calls. Problems start when calls are between VoLTE and other networks. In such cases there are typically quality issues due to the different charecteristics of the networks. The presentation explains the issues and the solution for this issue.

1. Quality
Across
VoLTE
and
OTT
Networks
Amir
Zmora
VP
Alliances
&
Partnerships

2. AudioCodes
Mission
Statement
Innova;ve
Leading
Supplier
of
Converged
VoIP
&
Data
Solu;ons
for
Service
Providers
and
Enterprises
Worldwide.

3. AudioCodes:
A
Brief
Intro
§ Market
leader
in
VoIP
networking
products
§ Deployed
in
over
than
100
countries
in
service
provider
and
enterprise
networks
§ Strong
brand
for
quality
&
performance
§ Over
650
employees,
~40%
of
whom
are
dedicated
to
R&D
§ Global
partnership
with
leading
telecom
players
§ More
than
20
years
of
VoIP
experPse
§ Public
since
1999
(NASDAQ:AUDC)
§ Revenue
in
2013:
137M
USD
§ TargePng
150M
USD
in
2014

4. Launched
The
Service

5. QoE
Customer
Survey
Results
Image:
Søren
Rajczyk

6. Further
Analysis

7. Further
Analysis

8. The
Laws
of
Simplicity
• BASICS
are
the
beginning
• REPEAT
yourself
oben
• AVOID
creaPng
desperaPon
• INSPIRE
with
examples
• NEVER
forget
to
repeat
yourself

9. ImpacPng
Real-­‐Time
CommunicaPon
János
Balázs
Vladimer
Shioshvili
Javier
Kohen

10. The
Codec
PerspecPve
§ Built
for
different
types
of
networks
§ Resiliency
§ Variable
bit
rate

11. VoLTE
Networks
are
Built
for
Voice…
§ In
VoLTE
to
VoLTE
over
the
same
service
provider
network
the
network
solves
the
problems:
§ Voice
is
prioriPzed,
zero
delay
§ No
retransmission
§ Dynamic
rate
change
(rate
vs.
redundancy
based
on
signal
quality)

12. But
in
Reality
Image:
digital
cat

13. Heterogonous
Access
and
Networks
Enterprise
Service
Provider
PSTN
OTT
App
OTT
Island
GW
SIP
Trunk
PBX

14. Voice
in
Wireless
Networks
High
Error
Rate
Retransmission
Increased
Delay
&
Jiler
Varying
Proximity
to
Base
StaPon
Dynamic
Change
in
Bit
Rate
Varying
Change
in
Jiler
High
&
Inconsistent
Jiler

15. MediaPon
is
Required
Image:
HikingArPst

16. SEM
–
QoS
visibility
over
mul;ple
network
&
mul;
codecs
Network
Easily
locate
problems
SBC,
GWs
and
Links
Maps,
Table
or
Regional
views
Various
Filters
Sta+s+cs
Watch
VoIP
trends
over
Pme
Calls
Success
/
Fail
Rate
Quality
Metrics
Bandwidth
UPlizaPon
Calls
InvesPgate
Specific
Calls
Voice
&
Fax
Calls
Table
SorPng,
search
&
filtering
Enhanced
call
details
Alarms
Be
noPfied
when
a
quality
issue
occurs
User
defined
thresholds
AcPve,
and
history
alarms
Email,
SNMP,
Syslog
noPficaPons
Reports
Validate
performance
and
SLA
Summary,
Trend
and
Top
Users
reports
Graphical
and
Table
views
User
CustomizaPon
opPons

17. Mixing
The
Ingredients
János
Balázs
Vladimer
Shioshvili
Javier
Kohen
Julie
Rybarczyk

18. Heterogonous
Access
and
Networks
GSM
Other
VoLTE
Networks
IMS
Core
TDM
VoIP
Wireline
SBC
Voice
Quality
“Brain”

19. Thank
You