Calling land line extensions

Asterisk Asterisk Support
1

I currently have an existing Asterisk system working at my main office and use VPN routers to interface my main office to my home office.

 Main office:
                     Asterisk server 
                     zaptel card (4 FXO ports)
                     4 AT&T four line phones
                     2 Polycom IP phones

 Home office:
                      1 Polycom IP phone

The system has been working for over a month with great success; however I now need to call the extensions on the At&T phones from the IP phones.

Help would be greatly appreciated.

Code from extensions.conf:

;AT&T phone, Accounting, extension 11
exten => 11,1,Dial(Zap/1/${EXTEN})
exten => 11,n,Answer,10
exten => 11,n,Voicemail(11)
exten => 11,n,VoiceMail(u${EXTEN}@default)
exten => 11,102,Playback(silence/1)
exten => 11,103,VoiceMail(b${EXTEN}@default)

;Polycom Phone (Sales)
exten => 101,1,Dial(SIP/${EXTEN},10,Tt)
exten => 101,n,Answer,10
exten => 101,n,Voicemail(101)
exten => 101,n,VoiceMail(u${EXTEN}@default)
exten => 101,102,Playback(silence/1)
exten => 101,103,VoiceMail(b${EXTEN}@default)

Zapata.conf file

[channels]

language=en
immediate=no

busydetect=yes
callprogress=no
progzone=us
ringtimeout=8000

echocancel=yes
relaxdtmf=no
rxgain=0.0
txgain=0.0

musiconhold=native-random
group=1
context=outside

signalling=fxs_ks
channel => 1-4

usecallerid=yes
callerid=asreceived
hidecallerid=no

2

I’m not sure about the AT&T phones but normally you would need FXS ports and not FXO ports to plug an analogue phone into.