[Asterisk-Users] Cisco 7960 and Asterisk, I think I have a curly one here

[Peter J VERNON]

Guys......

I have Asterisk CVS-NHEAD-03/19/05-21:56:28 running on a box here and have a 
couple of Cisco 7960s and a Grandstream phone.

I can make calls from the 7960. When I get a call placed to the 7960 the call 
is setup but there is no audio in either direction. This is for a call placed 
on the local subnet between extensions so I doubt that it is a NAT issue 
though I have tried a number of combinations of this to no avail.

I have tried firmware versions 6 & 7 on the Cisco phones, same result. I have 
tried the phones on two other Asterisk installs and they work fine. I have 
compared sip.conf with these and can see no differences.

If I configure the grandstream up to replace the 7960 it works fine.

I have noticed that the src port (TCP port on the phone) increments during 
the session which seems to be the issue.

Anyone seen this before? Any assistance would be appreciated.

Regards
Peter 

Here are some of the settings.

Sip.conf for the extension:

[9001]
type=friend                     ; either "friend" (peer+user), "peer" 
or "user"
context=extensions
secret=9001
fromuser=Cisco          ; overrides the callerid, e.g. required by FWD
callerid=9001
host=dynamic            ; we have a static but private IP address
nat=never                          ; there is not NAT between phone and 
Asterisk
dtmfmode=rfc2833
canreinvite=no          ; allow RTP voice traffic to bypass Asterisk
incominglimit=5         ; permit only 1 outgoing call at a time
outgoinglimit=5
progressinband=yes
disallow=all
allow=ulaw
mailbox=9001


Phone config:

Loadid:  SW: P0S3-05-3-00  ARM: PAS3ARM1  Boot: PC030300  DSP: PS03AS30
SIP Phone> show config
------ Current *FLASH* Configuration ------

Platform : Cisco IP Phone 7960
Elasped Time: 15:15:24

dhcp_server : 192.168.10.254
my_ip_addr : 192.168.10.17
subnet_mask : 255.255.255.0
defaultgw : 192.168.10.254
dyn_dns_addr_1 : 0.0.0.0
dyn_dns_addr_2 : 0.0.0.0
dns_addr : 203.194.26.236
dns_backup_1: 203.194.26.235
tftp_addr : 192.168.11.2
dyn_tftp_addr : 0.0.0.0
my_mac_addr : 0003:e348:e5cb
domain_name : home.jbo.com.au
my_name : SIP0003E348E5CB
Status Flags : 12310000

image_version : "P0S3-07-3-00"
FirmLoadID : "PC030300"
network_media_type : Auto
network_port2_type : Hub/Switch
tos_media : 5
phone_label : "UNPROVISIONED"
tftp_cfg_dir : ""
phone_password : **********
phone_prompt : "SIP Phone"
language : english
sntp_mode : DirectedBroadcast
sntp_server : 0.0.0.0
time_zone : EAST
dst_offset : 01/00
dst_start_month : April
dst_start_day : 0
dst_start_day_of_week : Sunday
dst_start_week_of_month : 1
dst_start_time : 02/00
dst_stop_month : October
dst_stop_day : 0
dst_stop_day_of_week : Sunday
dst_stop_week_of_month : 0
dst_stop_time : 02/00
dst_auto_adjust : 1
time_format_24hr : 1
date_format : D/M/Y
nat_enable : 0
nat_address : UNPROVISIONED
voip_control_port : 5060
start_media_port : 16384
end_media_port : 32766
sync : "1"
xml_card_dir : ""
xml_card_file : "CARD.XML"
telnet_level : 2
services_url : "http://192.168.11.2/cgi-bin/rss2cisco.pl"
directory_url : "http://192.168.11.2/directory.html"
logo_url : "http://192.168.11.2/asterisk-tux.bmp"
http_proxy_addr : UNPROVISIONED
http_proxy_port : 80
enable_vad : 0
dial_template : ""
callerid_blocking : 0
anonymous_call_block : 0
autocomplete : 1
messages_uri : "199"
dnd_control : 0
preferred_codec : g711ulaw
dtmf_outofband : avt
dtmf_avt_payload : 101
dtmf_db_level : 3
dtmf_inband : 1
line1_name : "9001"
line2_name : "UNPROVISIONED"
line3_name : "UNPROVISIONED"
line4_name : "UNPROVISIONED"
line5_name : "UNPROVISIONED"
line6_name : "UNPROVISIONED"
line1_authname : "9001"
line2_authname : "UNPROVISIONED"
line3_authname : "UNPROVISIONED"
line4_authname : "UNPROVISIONED"
line5_authname : "UNPROVISIONED"
line6_authname : "UNPROVISIONED"
line1_password : **********
line2_password : **********
line3_password : **********
line4_password : **********
line5_password : **********
line6_password : **********
line1_shortname : "9001"
line2_shortname : "UNPROVISIONED"
line3_shortname : "UNPROVISIONED"
line4_shortname : "UNPROVISIONED"
line5_shortname : "UNPROVISIONED"
line6_shortname : "UNPROVISIONED"
line1_displayname : "9001"
line2_displayname : "UNPROVISIONED"
line3_displayname : "UNPROVISIONED"
line4_displayname : "UNPROVISIONED"
line5_displayname : "UNPROVISIONED"
line6_displayname : "UNPROVISIONED"
proxy1_address : "192.168.10.106"
proxy2_address : "UNPROVISIONED"
proxy3_address : "UNPROVISIONED"
proxy4_address : "UNPROVISIONED"
proxy5_address : "UNPROVISIONED"
proxy6_address : "UNPROVISIONED"
proxy1_port : 5060
proxy2_port : 5060
proxy3_port : 5060
proxy4_port : 5060
proxy5_port : 5060
proxy6_port : 5060
sip_retx : 10
sip_invite_retx : 6
timer_t1 : 500
timer_t2 : 4000
timer_invite_expires : 180
timer_register_expires : 3600
proxy_register : 1
proxy_backup : "UNPROVISIONED"
proxy_emergency : "UNPROVISIONED"
proxy_backup_port : 5060
proxy_emergency_port : 5060
outbound_proxy : 192.168.10.106
outbound_proxy_port : 5060
nat_received_processing : 0
mwi_status : 0
call_waiting : 1
user_info : none
cnf_join_enable : 1
remote_party_id : 0
semi_attended_transfer : 1
call_hold_ringback : 0
SIP Phone>