[Asterisk-Users] PSTN Call drops randomly

[Eric Wieling]

Set callprogress=no and busycount=6 or higher in
/etc/asterisk/zapata.conf

On Fri, 2004-04-23 at 14:38, Shahid Mahmood wrote:
> Dear List members,
> After succesfully installing the * on a couple of systems, and putting
> them on test, I observed that there is an intermittent call drop on
> PSTN line.
> 
> The systems are
> - Dell Optiplex P3/500MHz/128MB
> - Built-in ethernet
> - 1 X100P (Motorolla chip) card on PCI
> - 10G HDD etc.
> - Asterisk April 17 CVS.
> - 2 Mediatrix FXS ATA (4 phones)
> - 2 Grandstream phones.
> - sip.conf, zaptel.comnf and zapata.conf included below
> 
> Also let me know what do I need to "turn on" to get fine details about
> the event when it happens.
> 
> Any help will be greatly appreciated.
> 
> Regards.
> -shahid
> 
> ========== sip.conf=============
> [general]
> port = 5060                     ; Port to bind to
> bindaddr = 0.0.0.0              ; Address to bind SIP channel to
> context = default               ; Default context for incoming calls
> ;srvlookup = yes                ; Enable DNS SRV lookups on outbound 
>                                 ; Asterisk only uses the first host in 
> 
> ;pedantic = yes                 ; Enable slow, pedantic checking for 
> tos=lowdelay                    ; IP QoS parameter, either keyword or
>                                 ; like tos=184
> ;maxexpirey=3600                ; Max length of incoming registration
> we allow
> ;defaultexpirey=120             ; Default length of incoming/outoing
> registratio
> n
> ;notifymimetype=text/plain      ; Allow overriding of mime type in
> NOTIFY
> ;videosupport=yes               ; Turn on support for SIP video
> 
> externip = xxxxxxxxxxxxxxxxx    ; Address that we're going to put in 
>                                 ; if we're behind a NAT
> localnet = 192.168.0.0          ; Internal NETWORK address
> localmask = 255.255.255.0       ; Internal netmask
> 
> disallow=all
> allow=ulaw
> allow=alaw
> allow=gsm
> 
> [4001]
> type=friend
> secret=4001
> host=dynamic
> defaultip=192.168.0.201
> mailbox=4001 at default
> context=default
> 
> [4002]
> type=friend
> userid=4002
> secret=4002
> host=dynamic
> defaultip=192.168.0.202
> mailbox=4002 at default
> context=default
> 
> [4003]
> type=friend
> secret=4003
> host=dynamic
> defaultip=192.168.0.203
> mailbox=4003 at default
> 
> ============= ../zaptel.conf (uncommented lines) =============
> fxsks=1
> loadzone = us
> defaultzone=us
> 
> ============= zaptel.conf =======================
> ;
> ; Zapata telephony interface
> ;
> ; Configuration file
> 
> [channels]
> ;
> ; Default language
> ;
> ;language=en
> ;
> ; Default context
> ;
> context=default
> ;
> switchtype=national
> signalling=fxo_ls
> rxwink=300              ; Atlas seems to use long (250ms) winks
> usecallerid=yes
> hidecallerid=no
> callwaiting=yes
> callwaitingcallerid=yes
> ;
> ; Support three-way calling
> ;
> threewaycalling=yes
> ;
> ; Support flash-hook call transfer (requires three way calling)
> ;
> transfer=yes
> ;
> ; Support call forward variable
> ;
> cancallforward=yes
> callreturn=yes
> echocancel=yes
> echocancelwhenbridged=yes
> relaxdtmf=yes
> rxgain=0.0
> txgain=0.0
> 
> group=1
> 
> callgroup=1
> pickupgroup=1-2
> immediate=no
> 
> busydetect=yes
> 
> ;
> busycount=4
> 
> musiconhold=default
> ;
> jitterbuffers=8
> 
> context=bell
> signalling=fxs_ks
> 
> callerid=asreceived
> 
> channel=1
> ; --- uncomment for second card
> 
> ;signalling=fxs_ks
> ;callerid=asreceived
> ;channel=2
> 
> 
> 
> 
> 
> 
> 
> 	
> 		
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-- 
          Eric Wieling * BTEL Consulting * 504-899-1387 x2111
"In a related story, the IRS has recently ruled that the cost of Windows
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