Unable to complete call to/from FXS device

Unanswered Question
Aug 4th, 2008

I am labbing the following scenario:

IP Phone <--> UCM6.1 <--> 2801 <--> VG200 <--> FXS <--> Analog Phone

I my goal is to route to an analog device using h.323 dialpeers. All devices are connected to the same LAN switch and are on the same VLAN. I have the 2801 configured as an H.323 gateway within CallManager but not the VG200. I have IP Phones configured in CallManager and FXS configured on the VG200 for the analog phones. The IP Phones can call each other and the analog phones can complete calls to each other.

I have configured a dial-peer on the 2801 with a destination-pattern sending the call to the VG200 and a dial-peer on the VG200 pointing back to the 2801.

*** 2801 Config ***

voice call send-alert

voice rtp send-recv

!

voice service voip

allow-connections h323 to h323

!

voice class codec 1

codec preference 1 g711ulaw

!

voice class h323 1

h225 timeout tcp establish 3

!

interface FastEthernet0/0

description SC Voice LAN

ip address 10.254.0.253 255.255.255.0

duplex auto

speed auto

h323-gateway voip interface

h323-gateway voip bind srcaddr 10.254.0.253

!

dial-peer voice 200 voip

description dial-peer to CallManager

destination-pattern 2...

progress_ind setup enable 3

voice-class codec 1

voice-class h323 1

session target ipv4:10.254.0.250

dtmf-relay cisco-rtp h245-signal h245-alphanumeric

!

dial-peer voice 201 voip

description dial-peer to VG200

destination-pattern 3...

progress_ind setup enable 3

voice-class codec 1

voice-class h323 1

session target ipv4:10.254.0.251

incoming called-number .

dtmf-relay cisco-rtp h245-signal h245-alphanumeric

*** End ***

*** VG200 Config ***

call rsvp-sync

voice call send-alert

voice rtp send-recv

!

voice service voip

h323 call start fast

!

voice class codec 1

codec preference 1 g711ulaw

!

voice class h323 1

h225 timeout tcp establish 3

!

interface FastEthernet0/0

ip address 10.254.0.251 255.255.255.0

duplex auto

speed auto

h323-gateway voip interface

h323-gateway voip bind srcaddr 10.254.0.251

!

voice-port 1/1/0

description ** FXS **

station-id number 3001

!

voice-port 1/1/1

description ** FXS **

station-id number 3002

!

dial-peer voice 9 voip

destination-pattern 2...

progress_ind setup enable 3

voice-class codec 1

voice-class h323 1

session target ipv4:10.254.0.253

dtmf-relay cisco-rtp h245-signal h245-alphanumeric

no vad

!

dial-peer voice 10 pots

destination-pattern 3001

port 1/1/0

!

dial-peer voice 11 pots

destination-pattern 3002

port 1/1/1

!

*** End ***

The issue I'm seeing is thus:

1) IP Phone can ring Analog Device

2) Analog Device rings

3) No ringback to IP Phone

4) When Analog Device goes off-hook, dead air, IP Phone times out to busy

1) Analog Device can ring IP Phone

2) IP Phone rings

3) I hear ringback on the Analog Device

4) When IP Phone goes off-hook, I continue to hear ringback on Analog Device until it times out to busy.

Any suggestions to config or what to troubleshoot are much appreciated.

Thanks!

I have this problem too.
0 votes
  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.

Actions

This Discussion