Cercasi esperto configuratore tel voip

[virzillo]

CIAO,
SE vi posto la schermata del telfono voip in mio possesso, siete in grado di spiegarmi a che servono i vari settaggi????


Use DNS SRV No Yes
User ID is phone number No Yes
SIP Registration No Yes
Unregister On Reboot No Yes
Register Expiration (in minutes. default 1 hour, max 45 days)
Outgoing Call without Registration No Yes
local SIP port (default 5060)
local RTP port (1024-65535, default 5004)
Use random port No Yes
Refer-To Use Target Contact No Yes
Voice Mail UserID (UserID for voice mail system)
Intercom Dial Code (Dial Code for Intercom)
Pick Up Dial Code (Dial Code for Pick Up)

DTMF Payload Type
DTMF in Audio No Yes
DTMF via RFC2833 No Yes
DTMF via SIP INFO No Yes
Send Flash Event No Yes (Flash will be sent as a DTMF event if set to Yes)
Enable Call Features No Yes (if Yes, call features using star codes will be supported locally)
Offhook Auto-Dial (User ID/extension to dial automatically when offhook)
Proxy-Require
Use NAT IP (used in SIP/SDP message if specified)

Preferred Vocoder
(in listed order) choice 1:
choice 2:
choice 3:
choice 4:
choice 5:
choice 6:
Voice Frames per TX (up to 10/20/32/64 for G711/G726/G723/other codecs respectively)
G723 rate 6.3kbps encoding rate 5.3kbps encoding rate

VAD No Yes
Symmetric RTP No Yes
Jitter Buffer Type Fixed Adaptive
Jitter Buffer Length Low Medium High



Early Dial No Yes (use "Yes" only if proxy supports 484 response)

SUBSCRIBE for MWI No, do not send SUBSCRIBE for Message Waiting Indication
Yes, send periodical SUBSCRIBE for Message Waiting Indication



Force Timer No Yes (Use timer even when remote party does not support)
UAC Specify Refresher UAC UAS Omit (Recommended)
UAS Specify Refresher UAC UAS (When UAC did not specify refresher tag)
Force INVITE No Yes (Always refresh with INVITE instead of UPDATE)
Special Feature



allora laprima parte mi è ben chiara, è la parte relativa ai codec che non so come settare...
sul trixbox tutte le chiamate vengono negoziate col g729,ma alcuni telefoni non si sentono bene..scariche di interferenza e comunicazione a tratti...
Come devo settarli sti telefoni?????
HELP!!!