I am fairly new to the IAD line of cisco devices so forgive me if my question is something obvious. I recently purchased an old IAD2421-8FXS for use in my home lab and pretty much have it hadnling my analog handsets and connecting to my 1760v which hosts my IP phones running SCCP. Calls from the IP phones across the local network to the IAD work great and so does the voice quality, however calls from the analog phones (connected to the FXS on the IAD) to the IP phones or to the PSTN (FXO card in the 1760v) are muffled and the voice breaks up. I am wondering if this may be an attenuation issue or an input gain issues on the FXS ports, or do I just have a bad IAD unit. Below is my IAD config. Any help is appreciated.
! version 12.3 no service pad service timestamps debug datetime msec service timestamps log datetime msec no service password-encryption ! hostname fayrec-vgw-fxs ! boot-start-marker boot-end-marker ! ! network-clock base-rate 56k no aaa new-model ip subnet-zero ! ! ip name-server 192.168.0.1 ! ip audit po max-events 100 ! ! ! no voice confirmation-tone ! ! voice-card 0 ! ! ! controller T1 0 framing esf linecode b8zs ! ! ! interface Ethernet0 ip address 192.168.0.203 255.255.255.0 ! interface Serial0 no ip address shutdown ! ip default-gateway 192.168.0.1 ip classless no ip http server ! ! ! voice-port 1/1 timing hookflash-in 1000 disc_pi_off input gain 1 output attenuation 1 playout-delay minimum low cptone HK timing digit 53 description VOICE PORT 1 FXS music-threshold -50 bearer-cap Speech station-id name POTS station-id number 2201 caller-id enable disconnect-ack ! voice-port 1/2 ! voice-port 1/3 ! voice-port 1/4 ! voice-port 1/5 ! voice-port 1/6 ! voice-port 1/7 ! voice-port 1/8 ! dial-peer voice 100 pots
description *** FXS PORT 1 *** destination-pattern 2201 port 1/1 ! dial-peer voice 101 voip description *** CONNECTION TO CISCO 1760V **** translation-profile outgoing E164 destination-pattern 20.. session protocol sipv2 session target ipv4:192.168.0.201 dtmf-relay rtp-nte codec g711ulaw !
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