Difference between voice and data

[aneesholv]

What is the difference between voice and data in an ethernet network ? I mean when it converting in to digital packets , is both are same ? Then where its difference exist ? please also tell about video network

Regards
Aneesh t v

 

[ks1009]

The term Ethernet applies to an IEEE ratified data standard called 802.3; all traffic will be encapsulated in an 802.3 frame and directed to its recipient, no difference for data, voice or video.

 

[aneesholv]

Then please tell me the purpose of VOIP protocol ?

 

[navenmou]

VOIP - Short for Voice Over Internet Protocol, a category of hardware and software that enables people to use the Internet as the transmission medium for telephone calls by sending voice data in packets using IP rather than by traditional circuit transmissions..."
VoIP Protocols

 

[ks1009]

VoIP is not a protocol; it’s an implementation of encapsulating voice into an IP packet and optimizing it for routing and switching over an IP network. Common VoIP protocols are SIP, IMS, RTP, IAX, and others, these are the actual standards that allow for voice to be encapsulated into an IP packet and routed over an IP network, Skype is a form of VoIP.

 

[aneesholv]

Shall I make a call from VOIP to traditional circuit switched network (PSTN) ? please help me

 

[ks1009]

In a nut shell PSTN lines are expensive compared to data, so what companies do is bring in let’s say 100 lines at their data center, and then each branch office will have a high-speed data link to the data center, all the VoIP traffic flows from the branch offices data circuit back to the data center and then out through PSTN lines. Modern VoIP lets you do all kind of neet stuff that used to cost major dollars back in the PSTN days for a full featured PBX system, think Nortel Meridian, and you would have had to buy one for each branch office.

Hope this helps

Good Luck!!!

 

[chitturi_sb]

yes, you can call from VOIP to a landline phone in PSTN.
Using Skype we can do that in USA. (not allowed in India yet due to DOT restrictions)