[SIPForum-discussion] 501 not implemented

[Aniella Juverdeanu]

Is the response immediately after Invite (is there another message before 501?).

If not, I cannot see anything else than the fact that the From field is using E.164 format (+phone number). Either the ISP is not supporting E.146 at all or is not supporting it partially. Normally is E.164 is used should be applied to all headers (Request URI, From, To) -BroadWorks is wrong here as only From is set to use it.

Thanks,
Aniella


From: discussion-bounces at sipforum.org [mailto:discussion-bounces at sipforum.org] On Behalf Of Tshepo Kekana
Sent: December 12, 2011 5:53 AM
To: discussion at sipforum.org
Subject: [SIPForum-discussion] 501 not implemented

Hi

can someone assist, I am getting a 501 from the ISP when trying to place a calls from one specific customer.

I checked the invite but i don't seem to find what is wrong with it.

INVITE sip:27828863266 at 41.208.52.7:5060;user=phone SIP/2.0
Via: SIP/2.0/UDP 66.8.114.20:5060;branch=z9hG4bKjgcral30bgo0hqsqs720.1
From: "FP Hillbrow (K)"<sip:+27877402193 at 196.31.51.15;user=phone>;tag=1257524672-1323349529033-
To: <sip:27828863266 at 196.31.51.4:5060;user=phone>
Call-ID: BW150529033081211-2088874824 at 196.31.51.15<mailto:BW150529033081211-2088874824 at 196.31.51.15>
CSeq: 249800933 INVITE
Contact: <sip:66.8.114.20:5060;transport=udp>
P-Asserted-Identity: "FP Hillbrow (K)"<sip:+27877402193 at 196.31.51.15;user=phone>
Privacy: none
Supported: 100rel
Allow: ACK,BYE,CANCEL,INFO,INVITE,OPTIONS,PRACK,REFER,NOTIFY,UPDATE
X-BroadWorks-DNC: network-address="sip:+27877402193 at 196.31.51.15;user=phone";user-id="0877402193 at 192.168.100.1<mailto:0877402193 at 192.168.100.1>"
Accept: application/media_control+xml,application/sdp,application/x-broadworks-call-center+xml,multipart/mixed
Max-Forwards: 13
Content-Type: application/sdp
Content-Length: 219

regards,
Tshepo
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