How can I strip +1 from outbound calls?

[sipjunky]

We are using the TA908e with FXS ports.  We've been playing with the dialplans but can't find anywhere that allows us to strip the +1 that the Adtran seems to put on the outbound TO number by default.  We are only dialing 10 digit NXX-NXX-XXXX from the FXS test phone but somewhere in the Adtran the +1 is being added.  Thoughts?

Thanks

[Anonymous]

Please post your config.

.

[sipjunky]

sip grammar from host local

!

sip qos dscp 46

sdp grammar hold rfc3264

ip rtp quality-monitoring

ip rtp quality-monitoring sip

!

qos map VoIP 10

  match dscp 46

  priority unlimited

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

voice international-prefix abbreviated

!

voice feature-mode network

voice timeouts interdigit 3

voice forward-mode network

!

voice dial-plan 1 long-distance $

voice dial-plan 2 local NXX-NXX-XXXX

!

!

!

!

voice codec-list Standard

  default

  codec g729

  codec g711ulaw

!

!

!

voice trunk T01 type sip

  description "outboundtrunk"

  match dnis "[+1]-NXX-NXX-XXXX" substitute "NXX-NXX-XXXX"

  sip-server primary 10.10.10.1

  registrar primary 10.10.10.1

  register 6182 auth-name "6182" password "xxxxxxxx"

  codec-list Standard both

!

!

voice grouped-trunk SIP

  trunk T01

  accept NXX-NXX-XXXX cost 0

  accept 1-NXX-NXX-XXXX cost 0

  accept 1-800-NXX-XXXX cost 0

  accept 1-888-NXX-XXXX cost 0

  accept 1-877-NXX-XXXX cost 0

  accept 1-866-NXX-XXXX cost 0

  accept 1-855-NXX-XXXX cost 0

  accept 411 cost 0

  accept 611 cost 0

  accept 911 cost 0

  accept 0-NXX-NXX-XXXX cost 0

  accept 011-$ cost 0

  reject NXX-976-XXXX

  reject 1-900-NXX-XXXX

  reject 1-976-NXX-XXXX

  reject 976-XXXX

!

!

!

voice user 103

  connect fxs 0/3

  first-name "Line"

  last-name "3"

  password encrypted "xxxxxx"

  caller-id-override external-number xxxxxx6184

  no special-ring-cadences

  sip-identity xxxxxx6184 T01 register auth-name "xxxxxx6184" password "xxxxxxxx"

  sip-authentication password encrypted "xxxxxxxxxx"

  codec-list Standard

!

!

voice user 104

  connect fxs 0/4

  first-name "Line"

  last-name "4"

  password encrypted "xxxxxxxx"

  caller-id-override external-number xxxxxx6185

  no special-ring-cadences

  sip-identity xxxxxx6185 T01 register auth-name "xxxxxx6185" password "xxxxxxxxx"

  sip-authentication password encrypted "xxxxxxxxx"

  codec-list Standard

!

voice ring-group 2100

  type linear

  num-rings 3

  max-inbound 5

  member 103

  login-member 103

  member 104

  login-member 104

!

sip grammar from host local

!

sip qos dscp 46

!

!

!

!

sdp grammar hold rfc3264

!

ip rtp quality-monitoring

ip rtp quality-monitoring sip

!

[sipjunky]

See below

[jayh]

Your configuration looks good.  My suspicion is that your TA900 isn't inserting the +1 prefix on its own.  The SIP carrier is probably sending you as 302 reformatting the number to E.164 by adding the +1 for a reinvite.

Do the calls complete?  Is this a problem or strictly a cosmetic issue?

A sample debug captured with "debug sip stack messages" would be useful. 

[sipjunky]

The calls are generated from behind the Adtran using the FXS ports and a butt set dialing 10 digits.  The carrier does not support seeing +1 or + on anything.  We will have to remove that to make outbounds.  We have another TA900 in the lab we're working with now to test configs.  Will print the debug sip if our changes do not work.  We have a packet capture on the front of the Adtran so we do see the +1 leaving the box.

[Anonymous · Accepted solution]

Sipjunky,

Try entering the following in your configuration.

no voice international-prefix abbreviated

This command is likely what is causing the E.164 format on the outbound call.  Let me know if that helps.

David

[ss_daveh]

Try the following line in your T01 config

match dnis "+1NXXXXXXXXX" substitute "NXXXXXXXXX"

[sipjunky]

no voice international-prefix abbreviated

This is actually the format the carrier needs to see from our device.  This was the fix.

Thanks