[Asterisk-Users] PSTN Call drops randomly

Shahid Mahmood
Fri, 23 Apr 2004 12:38:57 -0000

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@default
context=default

[4002]
type=friend
userid=4002
secret=4002
host=dynamic
defaultip=192.168.0.202
mailbox=4002@default
context=default

[4003]
type=friend
secret=4003
host=dynamic
defaultip=192.168.0.203
mailbox=4003@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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