68647
307
Zoom out
Zoom in
Previous page
1/325
Next page
Cisco SPA IP Phone Field Reference
Ext Tab
Cisco Small Business SPA300 Series, SPA500 Series, and WIP310 IP Phone Administration Guide 306
A
Audio Configuration
A codec resource is considered as allocated if it has been included in the SDP
codec list of an active call, even though it eventually might not be the one chosen
for the connection. So, if the G.729a codec is enabled and included in the codec
list, that resource is tied up until the end of the call whether or not the call actually
uses G.729a. If the G.729a resource is already allocated and since only one
G.729a resource is allowed per device, no other low-bit-rate codec might be
allocated for subsequent calls; the only choices are G711a and G711u. On the
other hand, two G.723.1/G.726 resources are available per device.
Therefore it is important to disable the use of G.729a in order to guarantee the
support of two simultaneous uses of the G.723/G.726 codecs.
Parameter Description
Preferred Codec Preferred codec for all calls. (The actual codec used in
a call still depends on the outcome of the codec
negotiation protocol.) Select one of the following:
G711u, G711a, G722, G726-16, G726-24, G726-32,
G726-40, G729a, or G723.
Cisco SPA525G or Cisco SPA525G2: G711u, G711a,
G726-32, G729a, and G722. G.723 (not available on
Cisco SPA300 Series or Cisco SPA500 Series). G722
not available on Cisco WIP310.
Defaults to G711u.
Use Pref Codec Only To use only the preferred codec for all calls, select yes.
(The call fails if the far end does not support this
codec.) Otherwise, select no.
Defaults to no.
Second Preferred
Codec
The second preferred codec when the preferred
codec cannot be used. If
Use Pref Codec Only i
s
enabled (set to yes), this parameter is not used.
Defaults to Unspecified.
Downloaded from www.Manualslib.com manuals search engine
307


Need help? Post your question in this forum.

Forumrules


Report abuse

Libble takes abuse of its services very seriously. We're committed to dealing with such abuse according to the laws in your country of residence. When you submit a report, we'll investigate it and take the appropriate action. We'll get back to you only if we require additional details or have more information to share.

Product:

For example, Anti-Semitic content, racist content, or material that could result in a violent physical act.

For example, a credit card number, a personal identification number, or an unlisted home address. Note that email addresses and full names are not considered private information.

Forumrules

To achieve meaningful questions, we apply the following rules:

Register

Register getting emails for Cisco 521SG at:


You will receive an email to register for one or both of the options.


Get your user manual by e-mail

Enter your email address to receive the manual of Cisco 521SG in the language / languages: English as an attachment in your email.

The manual is 2,55 mb in size.

 

You will receive the manual in your email within minutes. If you have not received an email, then probably have entered the wrong email address or your mailbox is too full. In addition, it may be that your ISP may have a maximum size for emails to receive.

The manual is sent by email. Check your email

If you have not received an email with the manual within fifteen minutes, it may be that you have a entered a wrong email address or that your ISP has set a maximum size to receive email that is smaller than the size of the manual.

The email address you have provided is not correct.

Please check the email address and correct it.

Your question is posted on this page

Would you like to receive an email when new answers and questions are posted? Please enter your email address.



Info