The Adtran community holiday season is starting next week! The holiday period will span from December 21, 2024 to January 6, 2025. During this time, responses to feedback form submissions may be delayed. If you are encountering product issues, you can reach out to Adtran support at any time.
cancel
Showing results for 
Show  only  | Search instead for 
Did you mean: 
markbspencer
New Contributor II

Added 2nd Sip trunk on Adtran 924e 3rd gen but inbound calls fail with SDP negotiation failed

Jump to solution

Looking for a little help. I think I have just configured something wrong.  I have a SIP trunk that feeds and Adtran 924e 3rd Gen running "T900E3A-R14-1-1-E.biz"

I have one SIP trunk and one PRI on the Adtran. The pri is connected to a Brooktrout fax card. I decided to add a 2nd Sip trunk to a different provider but cannot get it to work.  The error on the console is:SB.CALL 3 RTP resource unavailable or SDP negotiation failed. Call from (Source) to (Fax Number). Old Sip trunk  T01 still works.  Any help would be appreciated.

Config is:

! ADTRAN, Inc. OS version R14.1.1.E
! Boot ROM version R10.9.3.B2
! Platform: Total Access 908e (3rd Gen), part number 4243908F2SCTL

hostname "adtran-fax"

!
clock timezone -6-Central-Time
!
ip subnet-zero
ip classless
ip routing
ipv6 unicast-routing
!
name-server 8.8.8.8 8.8.4.4
!
no auto-config

event-history on
no logging forwarding
no logging email
!
service password-encryption
!
no ip firewall alg msn
no ip firewall alg mszone
no ip firewall alg h323
!
no dot11ap access-point-control
!
interface eth 0/1
description Network
ip address xxx.xxx.xxx.xxx xxx.xxx.xxx.xxx
no shutdown
media-gateway ip primary
!
interface eth 0/2
no ip address
shutdown
!
interface gigabit-eth 0/1
no ip address
shutdown
!
interface t1 0/1
shutdown
!
interface t1 0/2
shutdown
!
interface t1 0/3
tdm-group 1 timeslots 1-24 speed 64
no shutdown
!
interface t1 0/4
shutdown
!
interface pri 1
description pri 1
connect t1 0/3 tdm-group 1
no shutdown
!
interface fxs 0/1
no shutdown
!
interface fxs 0/2
no shutdown
!
interface fxs 0/3
no shutdown
!
interface fxs 0/4
no shutdown
!
interface fxs 0/5
no shutdown
!
interface fxs 0/6
no shutdown
!
interface fxs 0/7
no shutdown
!
interface fxs 0/8
no shutdown
!
interface fxo 0/0
no shutdown
!
isdn-group 1
connect pri 1
!
timing-source t1 0/3
!
ip route 0.0.0.0 0.0.0.0 xxx.xxx.xxx.xxx
!
ssh-server
no tftp server
no tftp server overwrite
no http server
http secure-server
no snmp agent
no ip ftp server
no ip scp server
no ip sntp server
!
sip
sip udp 5060
no sip tcp
no sip tls
!
voice feature-mode network
voice forward-mode network
!
voice dial-plan 1 local NXX-NXX-XXXX
!
voice codec-list Users
codec g711ulaw
codec g729
!
voice codec-list GLOBAL
codec g711ulaw
codec g729
!
voice codec-list None
default
codec g711ulaw
!
voice codec-list g729
codec g729
!
voice trunk T01 type sip
description "To provider 1"
sip-server primary xxx.xxx.xxx.xxx
!
voice trunk T02 type isdn
description "PRI-to-AT&T"
resource-selection circular descending
caller-id-override number-inbound xxxxxxxxxx if-no-cpn
connect isdn-group 1
no early-cut-through
modem-passthrough
rtp delay-mode adaptive
!
voice trunk T03 type sip
description "provider 2"
sip-server primary xxx.xxx.xxx.xxx
!
voice trunk T04 type sip
description "provider 3"
sip-server primary xxx.xxx.xxx.xxx
sip-header-passthrough both
codec-list GLOBAL both
!
!
voice grouped-trunk SIP2FAX
description "FAX"
trunk T01
accept $ cost 0
!
!
voice grouped-trunk PRI
description "Pri to fax"
trunk T02
accept $ cost 0
!
!
voice grouped-trunk SIP2CCSPBX
description "xxxxxx"
trunk T03
accept $ cost 0
!
!
voice grouped-trunk SIP2yyyyyy
description "yyyyyy"
trunk T04
accept $ cost 0
!
sip authenticate
!
sip registrar
!
sip database local

line con 0
no login
!
line telnet 0 4
login local-userlist
shutdown
line ssh 0 4
login local-userlist
no shutdown
!
sntp server north-america.pool.ntp.org

0 Kudos
1 Solution

Accepted Solutions
markbspencer
New Contributor II

Re: Added 2nd Sip trunk on Adtran 924e 3rd gen but inbound calls fail with SDP negotiation failed

Jump to solution

Figured this out. It was the SDP License. We were only licensed for 1 trunk.  Bought a license for $175 bucks and we are good to go.

 

View solution in original post

0 Kudos
1 Reply
markbspencer
New Contributor II

Re: Added 2nd Sip trunk on Adtran 924e 3rd gen but inbound calls fail with SDP negotiation failed

Jump to solution

Figured this out. It was the SDP License. We were only licensed for 1 trunk.  Bought a license for $175 bucks and we are good to go.

 

0 Kudos