Velocity Reviews - Computer Hardware Reviews

Velocity Reviews > Newsgroups > Computing > VOIP > H.323 Vs SIP VoIP & Softphone Vs Hardphone

Reply
Thread Tools

H.323 Vs SIP VoIP & Softphone Vs Hardphone

 
 
SIP2PSTN
Guest
Posts: n/a
 
      05-28-2005

I would like to know that is there any difference in voice quality ove
ADSL 256kbps connection while using H.323 or SIP , would like to kno
which is better for VOIP communication on low bandwidth,which giv
better compression , less echo and good quality .

Also would like to know that is there a difference in voice quality an
echo while using hardphone than a softphone . Which from both give
better sound quality and less echo on low bandwidth

--
SIP2PSTN
 
Reply With Quote
 
 
 
 
Danilo Kempf
Guest
Posts: n/a
 
      05-28-2005
> I would like to know that is there any difference in voice quality over
> ADSL 256kbps connection while using H.323 or SIP , would like to know
> which is better for VOIP communication on low bandwidth,which give
> better compression , less echo and good quality .


Neither protocol has something to do with echo or voice quality. Both SIP
and H.323 are signalling protocols which are used only to establish media
channels. Those in turn are transmitted via RTP in both cases, so there
shouldn't be a difference in quality between SIP or H.323 devices.

> Also would like to know that is there a difference in voice quality and
> echo while using hardphone than a softphone . Which from both gives
> better sound quality and less echo on low bandwidth .


In theory there's no difference between a "hard"phone and a softphone. In
practice most "tangible" VoIP phones include a real DSP doing some echo
cancellation. With next to all Softphones echo cancellation is pretty
uncommon, so you get better quality with a hardphone here.

 
Reply With Quote
 
 
 
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cisco Softphone Vlan Versus Preexisting Hardphone Voice Vlan Tennisman Cisco 1 09-23-2005 02:57 PM
H.323 Vs SIP VoIP & Softphone Vs Hardphone SIP2PSTN VOIP 1 05-29-2005 06:00 PM
H.323 Vs SIP VoIP & Softphone Vs Hardphone SIP2PSTN VOIP 1 05-29-2005 03:44 AM
User Report SJPhone <softphone> with Vonage Softphone Pepperoni VOIP 0 12-20-2004 06:40 AM
HardPhone with headset Paul Jones VOIP 4 08-08-2004 12:13 PM



Advertisments