Voice Engineering

R

Research - Technology may be under evaluation and is not being used in production

P

Pilot - Technology approved for small-scale production use only.

I

Invest - Technology recommended for wide-spread deployment.

M

Maintain - New implementations are not encouraged. Existing systems may continue to rely upon these components and extend existing implementations. Product may be maintained but not planned for upgrades except bug fixes.

D

Disinvest - Technology is in the process of being phased out.

U

Unsupported - Technology is not advised for use in production systems.

Q1

Q2

Q3

Q4

Q1

Q2

Q3

Q4

Q1

Q2

Q3

Q4

PBX

Avaya

Traditional Voice

M

M 

M 

M 

M 

M 

M 

M 

M 

M 

M 

M 

911 Services

Traditional 911

I

 I 

 I 

 I 

 I 

I 

I 

I 

I 

I 

I 

I 

E-911

Enhanced 911

P

 P 

 P 

 P 

 I 

I 

I 

I 

I 

I 

I 

I 

Cellular Infrastructure

P

 P 

 P 

 P 

 P 

 P 

I 

I

I 

I 

I 

I 

VoIP H.323

Traditional Voice / Video Over IP

P

P 

 I 

 I 

I 

I 

I 

I 

M

M 

M 

M 

VoIP H.248

Gateway Control Protocol

R

R

R

R

VoIP SIP

Session Initiation Protocol

R

R

R

R

P

P

P 

P 

I 

I 

I 

I