06-28-2007 02:06 PM - edited 03-14-2019 10:19 PM
I'd like to set up VG224 to support analog phones, modems, and fax machines with extensions on DID blocks. I've followed Cisco's SCCP Controlled Analog (FXS) Ports doc, and have successfully configured a voice port for an analog phone. However, the same config doesn't work when attaching fax machine. Fax machines generally transmit/receive faxes to/from external parties, not over IP WAN.
Recent posts recommend MGCP over SCCP but suggested configs may not work in my environment. I have a PRI terminating on a Catalyst WS-X6608-T1 module. CallManager 4.1(3)SR4d in single cluster, VG224 running 12.4(2)T5, configured in CCM as SCCP gateway with all 24 endpoints as analog phones.
06-29-2007 12:32 PM
version 12.4
no service pad
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
service sequence-numbers
!
hostname vg224
!
boot-start-marker
boot-end-marker
!
logging buffered 512000 debugging
no logging console
!
no aaa new-model
!
resource policy
!
clock timezone PDT -7
clock summer-time PDT recurring 2 Sun Mar 2:00 1 Sun Nov 2:00
clock save interval 8
ip subnet-zero
no ip dhcp use vrf connected
!
!
!
stcapp ccm-group 1
stcapp
!
voice-card 0
!
!
!
voice service voip
modem passthrough nse codec g711ulaw
!
!
!
!
!
!
!
!
!
!
!
!
interface FastEthernet0/0
description VG224 on Cat6509
ip address 10.0.123.2 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.0.123.1
!
ip http server
!
!
!
control-plane
!
!
voice-port 2/10
description analog_ph_test
caller-id enable
!
voice-port 2/11
description facsimile_test
caller-id enable
!
!
!
sccp local FastEthernet0/0
sccp ccm 10.0.123.4 identifier 7835 version 4.1
sccp
!
sccp ccm group 1
associate ccm 380 priority 1
!
!
dial-peer voice 9910 pots
description analog_ph_test
destination-pattern 210
port 2/10
!
dial-peer voice 9911 pots
description facsimile_test
destination-pattern 211
port 2/11
!
!
06-29-2007 12:32 PM
06-29-2007 12:33 PM
06-29-2007 12:33 PM
07-02-2007 11:38 AM
Here is a note from the Restrictions section of SCCP notes:
?Modem and fax-relay are not supported on FXS ports with SCCP enabled; only modem and fax pass-through are supported. Configure FXS ports with either fax or modems attached in H.323 or SIP mode.
http://www.cisco.com/en/US/products/ps6441/products_feature_guide09186a0080483a76.html
I think on the 6608, you enable fax passthrough by unchecking the fax relay box. This would be your best hope, and hope that the passthrough on the VG224 and the 6608 are the same flavor..
Mary Beth
07-02-2007 11:49 AM
Found this in the SRND:
At a high level, Cisco IOS Release 12.3(1) - Load 47 on the Cisco 6608 and Load 41 on the Cisco 6624 - and Release 1.2.1 on the VG248 do support interoperability of Cisco fax relay, modem pass-through, and voice features. Prior to Cisco IOS Release 12.2(11)T1, only voice and Cisco fax relay were supported between Cisco IOS and non-IOS voice platforms because incompatibility of the pass-through Named Service Event (NSE) scheme prevented modem pass-through from interoperating
So, it might be that you want to check the load on the 6608, and make sure you have a newer load, for the best hope of success..
Mary Beth
07-03-2007 09:16 AM
Find answers to your questions by entering keywords or phrases in the Search bar above. New here? Use these resources to familiarize yourself with the community: