Hi Alejandro, Thanks for your reply. It is an Asterisk PBX 1.6.2.24 that I have installed to test my application. Thanks & Regards. Narayan. ----- Original Message ----- From: Alejandro Orellana To: pjsip list Cc: Anugrah Sent: Thursday, May 23, 2013 5:46 PM Subject: Re: PJSUA is not working with PSTN calling. your call is getting a 503 Service Unavailable from 172.32.1.23 whatever that is ? a gateway? a pbx? this more likely means that 172.32.1.23 is not letting you place an outgoing call via a pstn line. On May 23, 2013, at 2:59 AM, Narayan wrote: 503 Service Unavailable ------ Alejandro Orellana Savant Systems, LLC 45 Perseverance Way Hyannis, MA 02601 +1 (508) 683-2547 (W) +1 (508) 683-2647 (F) Alejandro.Orellana at savantsystems.com Statement of Confidentiality The contents of this e-mail message and any attachments are confidential and are intended solely for the addressee. The information may also be legally privileged. This transmission is sent in trust, and the sole purpose of delivery to the intended recipient. If you have received this transmission in error, any use, reproduction or dissemination of this transmission is strictly prohibited. If you are not the intended recipient, please immediately notify the sender by reply e-mail or at 508.683-2500 and delete this message and its attachments, if any. Statement of Confidentiality The contents of this e-mail message and any attachments are confidential and are intended solely for the addressee. The information may also be legally privileged. This transmission is sent in trust, and the sole purpose of delivery to the intended recipient. If you have received this transmission in error, any use, reproduction or dissemination of this transmission is strictly prohibited. If you are not the intended recipient, please immediately notify the sender by reply e-mail or at 508.683.2500 and delete this message and its attachments, if any. ------------------------------------------------------------------------------ _______________________________________________ Visit our blog: http://blog.pjsip.org pjsip mailing list pjsip at lists.pjsip.org http://lists.pjsip.org/mailman/listinfo/pjsip_lists.pjsip.org -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.pjsip.org/pipermail/pjsip_lists.pjsip.org/attachments/20130523/b8d3255a/attachment-0001.html>