[Asterisk-Users] Suggestions for tunning SJphone with Asteris k?

[Guido Hecken]

Did you try using Sjphone with allow=alaw in sip.conf instead of g729?

In our Asterisk Installations we used:
...
allow=alaw
allow=ulaw
allow=gsm
...

and didn't have any echo or scratchy problems.

Hope it helps...

Regards
Guido Hecken

> -----Ursprüngliche Nachricht-----
> Von: Chuck Bunn [mailto:chuck.bunn at networkdoc.com]
> Gesendet: Donnerstag, 17. November 2005 15:15
> An: Asterisk - Users
> Betreff: [Asterisk-Users] Suggestions for tunning SJphone with Asterisk?
> 
> Hi,
> 
> I am having voice quality problems with SJPhone under certain
> conditions. Setup is Fedora 4 with Asterisk 1.2rc2 and Digium TDM 400P
> (2FXO's and 2 FXS's).
> 
> SJPhone => outside line => echo's, scratchy
> ZyXel P2000WV2 => outside line => clear as a bell
> 
> SJPhone => recording voice mail => clear as a bell
> ZyXel P2000WV2 => recording voice mail => clear as a bell
> 
> SJPhone => picking up voice mail => clear as a bell
> ZyXel P2000WV2 => picking up voice mail => clear as a bell
> 
> SJPhone => to any voice mail (connected remotely via VPN to network
> containing Asterisk) => clear as a bell
> 
> SJPhone => 3 way conference with Meet me => echo's, scratchy
> ZyXel P2000WV2 => 3 way conference with Meet me => unsure since
> conference was with 2 SJPhones
> 
> SJphone => internal extension => echo's, scratchy
> ZyXel P2000WV2 => internal extension => unsure since talking with SJPhone
> 
> **********************************
> Here is my 'sip.conf'
> 
> general]
> context=default
> srvlookup=yes
> 
> ;Zyxel - P2000WV2
> [300]
> context=internal-home
> type=friend
> username=300
> secret=xx
> callerid=<300>
> nat=no
> host=dynamic
> mailbox=300
> careinvite=no
> disallow=all
> allow=alaw
> dtmfmode=rfc2833
> 
> ;SJphone
> [301]
> context=internal-home
> type=friend
> username=301
> secret=xx
> callerid=<301>
> qualify=yes
> nat=no
> host=dynamic
> mailbox=301
> ;careinvite=no
> allow=g729
> dtmfmode=rfc2833
> 
> ;SJphone
> [302]
> context=internal-home
> type=friend
> username=302
> secret=xx
> callerid=<302>
> qualify=yes
> nat=no
> host=dynamic
> mailbox=302
> ;careinvite=no
> allow=g729
> dtmfmode=rfc2833
> 
> ;SJphone
> [303]
> context=internal-home
> type=friend
> username=303
> secret=xx
> callerid=<303>
> qualify=yes
> nat=no
> host=dynamic
> mailbox=303
> ;careinvite=no
> allow=g729
> dtmfmode=rfc2833
> 
> ;SJphone
> [304]
> context=internal-home
> type=friend
> username=304
> secret=xx
> callerid=<304>
> qualify=yes
> nat=no
> host=dynamic
> mailbox=304
> ;careinvite=no
> allow=g729
> dtmfmode=rfc2833
> 
> ;SJphone
> [305]
> context=internal-home
> type=friend
> username=305
> secret=xx
> callerid=<305>
> qualify=yes
> nat=no
> host=dynamic
> mailbox=305
> ;careinvite=no
> allow=alaw
> allow=g729
> dtmfmode=rfc2833
> 
> ;Zyxel - P2000WV2
> [306]
> context=internal-home
> type=friend
> username=306
> secret=xx
> callerid=<306>
> nat=no
> host=dynamic
> mailbox=306
> careinvite=no
> disallow=all
> allow=alaw
> dtmfmode=rfc2833
> 
> ;SJphone
> [307]
> context=internal-home
> type=friend
> username=307
> secret=xx
> callerid=<307>
> qualify=yes
> nat=yes
> host=dynamic
> mailbox=307
> ;careinvite=no
> allow=g729
> dtmfmode=rfc2833
> 
> ;Zyxel - P2000WV2
> [500]
> context=internal-rest
> type=friend
> username=500
> secret=xx
> callerid=<500>
> nat=no
> host=dynamic
> mailbox=500
> careinvite=no
> disallow=all
> allow=alaw
> dtmfmode=rfc2833
> 
> ************************************
>  HERE IS MY 'zapata.conf'
> 
> [trunkgroups]
> 
> [channels]
> usecallerid=yes
> hidecallerid=no
> callwaiting=no
> threewaycalling=no
> transfer=yes
> echocancel=yes
> echotraining=yes
> 
> context=incoming-home
> signalling=fxs_ks
> group=1
> channel => 1,2
> 
> context=trunkdial
> signalling=fxo_ks
> group=2
> channel => 3,4
> 
> ****************************************************
> Any suggestions for what to tune would be greatly appreciated.
> 
> Thanks
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