Call Drops When "Answering machine" cuts in...

#1
Hi,

My Cisco 7940 (SIP 8.2) has been running fine for about six months on Voipfone. On Saturday night I decided to enable the txt to mobile function to infom me if I had received a voice mail. I don't know if this is related but since then it's all been very odd... (I've since disabled this function)

I can ring my Cisco phone from my mobile, and the cisco phone rings, howerver on my mobile I hear nothing (ie no ringing).

When the Voiphone "answer machine" cuts in after about three rings, I get a message saying that I've dialed an incorrect number, then the line goes dead...

I can dial out from the Cisco to my mobile or BT landline with no probelms...

Does anyone have any ideas.. is it related to the voicemail?

Thanks Henry

#3
The following is the generic config for my Cisco 7940 phone. The line details, passwords etc are all held in my specific config (MAC Address Config file). The phone seems to register OK, but I'm still getting these probelms.

I'm using NAT and configured my router (Linksys WAG54G) to foward ports 5060 - 5065 (TCP and UDP) to my Csico phone (fixed ip address) as well as ports 16384 - 32766 (TCP and UDP)

Any ideas? this was working fine...

Thanks Henry
________________________


# SIP Generic Configuration File For CISCO 7940 (start)
# VOIPFONE


# Image Version

image_version: "P0S3-08-2-00"



# Proxy Server

proxy1_address: "sip.voipfone.co.uk"



# Proxy Server Port (default - 5060)

proxy1_port:"5060"



# Emergency Proxy info

proxy_emergency: ""

proxy_emergency_port: ""



# Backup Proxy info

proxy_backup: ""

proxy_backup_port: ""



# Outbound Proxy info

outbound_proxy: "sip.voipfone.co.uk"

outbound_proxy_port: "5060"



# Proxy Registration (0-disable (default), 1-enable)

proxy_register : 1



# NAT/Firewall Traversal

nat_enable: "1"

nat_address: "nat.voipfone.co.uk"

voip_control_port: "5065"

start_media_port: "16384"

end_media_port: "32766"

nat_received_processing: "0"



# Phone Registration Expiration [1-3932100 sec] (Default - 3600)

timer_register_expires: "60"



# Codec for media stream (g711ulaw (default), g711alaw, g729)

preferred_codec: "g711alaw"



# TOS bits in media stream [0-5] (Default - 5)

tos_media: "5"



# Enable VAD (0-disable (default), 1-enable)

enable_vad: "0"



# Allow for the bridge on a 3way call to join remaining parties upon hangup

cnf_join_enable: "1" ; 0-Disabled, 1-Enabled (default)



# Allow Transfer to be completed while target phone is still ringing

semi_attended_transfer: "0" ; 0-Disabled, 1-Enabled (default)



# Telnet Level (enable or disable the ability to telnet into this phone

telnet_level: "1" ; 0-Disabled (default), 1-Enabled, 2-Privileged



# Inband DTMF Settings (0-disable, 1-enable (default))

dtmf_inband: "1"



# Out of band DTMF Settings (none-disable, avt-avt enable (default), avt_always - always avt )

dtmf_outofband: "avt"



# DTMF dB Level Settings (1-6dB down, 2-3db down, 3-nominal (default), 4-3db up, 5-6dB up)

dtmf_db_level: "3"



# SIP Timers

timer_t1: "500" ; Default 500 msec

timer_t2: "4000" ; Default 4 sec

sip_retx: "10" ; Default 11

sip_invite_retx: "6" ; Default 7

timer_invite_expires: "180" ; Default 180 sec



# Setting for Message speeddial to UOne box

#messages_uri: "1571"

#mwi_status : "1"



# TFTP Phone Specific Configuration File Directory

;tftp_cfg_dir: ""



# Time Server

sntp_mode: "unicast"

sntp_server: "10.0.0.11"

time_zone: "GMT"

dst_offset: "1"

dst_start_month: "April"

dst_start_day: ""

dst_start_day_of_week: "Sun"

dst_start_week_of_month: "1"

dst_start_time: "02"

dst_stop_month: "Oct"

dst_stop_day: ""

dst_stop_day_of_week: "Sunday"

dst_stop_week_of_month: "8"

dst_stop_time: "2"

dst_auto_adjust: "1"



# Do Not Disturb Control (0-off, 1-on, 2-off with no user control, 3-on with no user control)

dnd_control: "2" ; Default 0 (Do Not Disturb feature is off)



# Caller ID Blocking (0-disabled, 1-enabled, 2-disabled no user control, 3-enabled no user control)

callerid_blocking: "0" ; Default 0 (Disable sending all calls as anonymous)



# Anonymous Call Blocking (0-disbaled, 1-enabled, 2-disabled no user control, 3-enabled no user control)

anonymous_call_block: "0" ; Default 0 (Disable blocking of anonymous calls)



# Call Waiting (0-disabled, 1-enabled, 2-disabled with no user control, 3-enabled with no user control)

call_waiting: "1" ; Default 1 (Call Waiting enabled)



# DTMF AVT Payload (Dynamic payload range for AVT tones - 96-127)

dtmf_avt_payload: "101" ; Default 100



# XML file that specifies the dialplan desired

dial_template: "dialplan"



# Network Media Type (auto, full100, full10, half100, half10)

network_media_type: "auto"



#Autocompletion During Dial (0-off, 1-on [default])

autocomplete: "0"



#Time Format (0-12hr, 1-24hr [default])

time_format_24hr: "1"



# URL for external Phone Services

services_url: "http://192.168.1.21/phone/news.htm" ; News Feed Services



# URL for external Directory location

directory_url: "http://192.168.1.21/phone/directory.htm" ; Phone Directory



# URL for branding logo

#logo_url: "http://10.0.0.11/cisco/aah.bmp"
;logo_url: "10-20logo.bmp"


# Remote Party ID

remote_party_id: 1 ; 0-Disabled (default), 1-Enabled

# SIP Generic Configuration File For CISCO 7940 (end)

#4
Got it working at last :D

With some assistance from Voipfone tech support, we decided to DISABLE the outbound proxy... now works fine behind my Linksys WAG54G:

# Outbound Proxy info

outbound_proxy: "UNPROVISIONED"

outbound_proxy_port: ""

To help others, these are my complete (and now working config files for my Cisco 7940) I'm pretty sure that they will also work for the Cisco 7960.

Hope this helps others, Henry

___________________________
THIS FILE NEEDS TO BE CALLED SIP123456789A12.cnf WHERE 123456789A12 IS YOUR CISCO PHONES MAC ADDRESS

CONFIG FOR SIP 8.2
___________________________


# SIP Phone Specific Configuration File for Cisco 7940 For MAC Address 123456789A12 (start)
# Voipfone Tel: xxxxx xxxxxx



# Line 1 Settings

line1_name: "your user id" ; Line 1 Extension\User ID

line1_displayname: "your name" ; Line 1 Display Name

line1_authname: "your user id" ; Line 1 Registration Authentication

line1_password: "your password" ; Line 1 Registration Password

line1_shortname: "your name"



# Line 2 Settings

line2_name: "UNPROVISIONED" ; Line 2 Extension\User ID

line2_displayname: "UNPROVISIONED" ; Line 2 Display Name

line2_authname: "UNPROVISIONED" ; Line 2 Registration Authentication

line2_password: "UNPROVISIONED" ; Line 2 Registration Password

line2_shortname: "UNPROVISIONED"



# Phone prompt/password for telnet/console session

phone_prompt: "Cisco 7940" ; Telnet/Console Prompt

phone_password: "cisco" ; Telnet/Console Password



# Phone Label (Text desired to be displayed in upper right corner)

phone_label: "Voipfone " ; Has no effect on SIP messaging


# SIP Phone Specific Configuration File for Cisco 7940 For MAC Address 123456789A12 (end)


___________________________
THIS FILE NEEDS TO BE CALLED SIPDefault.cnf

CONFIG FOR SIP 8.2
___________________________



# SIP Generic Configuration File For CISCO 7940 (start)
# Voipfone



# Image Version

image_version: "P0S3-08-2-00"



# Proxy Server info

proxy1_address: "sip.voipfone.co.uk"

proxy1_port:"5060"

proxy_register : 1



# Outbound Proxy info

outbound_proxy: "UNPROVISIONED"

outbound_proxy_port: ""



# Emergency Proxy info

proxy_emergency: ""

proxy_emergency_port: ""



# Backup Proxy info

proxy_backup: ""

proxy_backup_port: ""



# NAT/Firewall Traversal

nat_enable: "1"

nat_address: "nat.voipfone.co.uk"

nat_received_processing: "1"

voip_control_port: "5065"

start_media_port: "16384"

end_media_port: "32766"



# Time Zone phone will reside in

time_zone: GMT



# Setting for Message speeddial to UOne box

messages_uri: "1571"

mwi_status : "1"



# Phone Registration Expiration [1-3932100 sec] (Default - 3600)

timer_register_expires: "60"



# Codec for media stream (g711ulaw (default), g711alaw, g729)

preferred_codec: "g711alaw"



# TOS bits in media stream [0-5] (Default - 5)

tos_media: "5"



# Enable VAD (0-disable (default), 1-enable)

enable_vad: "0"



# Allow for the bridge on a 3way call to join remaining parties upon hangup

cnf_join_enable: "1" ; 0-Disabled, 1-Enabled (default)



# Allow Transfer to be completed while target phone is still ringing

semi_attended_transfer: "0" ; 0-Disabled, 1-Enabled (default)



# Telnet Level (enable or disable the ability to telnet into this phone

telnet_level: "2" ; 0-Disabled (default), 1-Enabled, 2-Privileged



# Inband DTMF Settings (0-disable, 1-enable (default))

dtmf_inband: "1"



# Out of band DTMF Settings (none-disable, avt-avt enable (default), avt_always - always avt )

dtmf_outofband: "avt"



# DTMF dB Level Settings (1-6dB down, 2-3db down, 3-nominal (default), 4-3db up, 5-6dB up)

dtmf_db_level: "3"



# SIP Timers

timer_t1: "500" ; Default 500 msec

timer_t2: "4000" ; Default 4 sec

sip_retx: "10" ; Default 11

sip_invite_retx: "6" ; Default 7

timer_invite_expires: "180" ; Default 180 sec



# TFTP Phone Specific Configuration File Directory

tftp_cfg_dir: "./"



# Time Server

sntp_mode: "unicast"

sntp_server: "10.0.0.11"

time_zone: "GMT"

dst_offset: "1"

dst_start_month: "April"

dst_start_day: ""

dst_start_day_of_week: "Sun"

dst_start_week_of_month: "1"

dst_start_time: "02"

dst_stop_month: "Oct"

dst_stop_day: ""

dst_stop_day_of_week: "Sunday"

dst_stop_week_of_month: "8"

dst_stop_time: "2"

dst_auto_adjust: "1"



# Do Not Disturb Control (0-off, 1-on, 2-off with no user control, 3-on with no user control)

dnd_control: "2" ; Default 0 (Do Not Disturb feature is off)



# Caller ID Blocking (0-disabled, 1-enabled, 2-disabled no user control, 3-enabled no user control)

callerid_blocking: "0" ; Default 0 (Disable sending all calls as anonymous)



# Anonymous Call Blocking (0-disbaled, 1-enabled, 2-disabled no user control, 3-enabled no user control)

anonymous_call_block: "0" ; Default 0 (Disable blocking of anonymous calls)



# Call Waiting (0-disabled, 1-enabled, 2-disabled with no user control, 3-enabled with no user control)

call_waiting: "1" ; Default 1 (Call Waiting enabled)



# DTMF AVT Payload (Dynamic payload range for AVT tones - 96-127)

dtmf_avt_payload: "101" ; Default 100



# XML file that specifies the dialplan desired

dial_template: "dialplan"



# Network Media Type (auto, full100, full10, half100, half10)

network_media_type: "auto"



#Autocompletion During Dial (0-off, 1-on [default])

autocomplete: "0"



#Time Format (0-12hr, 1-24hr [default])

time_format_24hr: "1"



# URL for external Phone Services

# services_url: "http://192.168.1.21/phone/news.htm" ; News Feed Services

services_url: "http://voipfone.co.uk"



# URL for external Directory location

directory_url: "http://192.168.1.21/phone/directory.htm" ; Phone Directory



# URL for branding logo

# logo_url: "http://10.0.0.11/cisco/aah.bmp"

# logo_url: "10-20logo.bmp"



# Remote Party ID

remote_party_id: 1 ; 0-Disabled (default), 1-Enabled



# SIP Generic Configuration File For CISCO 7940 (end)

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