[asterisk-users] 488 Not acceptable here

bilal ghayyad bilmar_gh at yahoo.com
Wed Jan 20 06:57:25 CST 2016

Thanks a lot for your kindly reply.Actually the alaw is enabled at asterisk but what I got to know from the other side that they only enabled ulaw. Below is my asterisk sip configuration for the sip trunk. Please advise.
[user_name]type=peerhost=Provider_IP_Addressport=5083context=trunkinbounddisallow=allallow = ulaw,alaw,gsmcall-limit = 256  insecure = port,invitetrunkstyle = providertransport = udp  dtmfmode = rfc2833remoteregister = yescbcallerid = 22021782qualify = yessrtpcapable = no

    On Wednesday, January 20, 2016 2:50 PM, A J Stiles <asterisk_list at earthshod.co.uk> wrote:

 On Wednesday 20 Jan 2016, bilal ghayyad wrote:
> Hello List;
> I am facing a trouble with a sip trunk on asterisk 1.4 and asterisk 1.8 and
> I am getting the following debug, can someone advise me about the
> solution: <--- SIP read from Provider_IP_Address:5083 --->INVITE
> ..... [stuff deleted] .....
> [Jan 18 10:52:37] VERBOSE[2421] logger.c: [Jan 18 10:52:37]<---
> Reliably Transmitting (no NAT) to Provider_IP_Address:5083 --->SIP/2.0 488
> Not acceptable here Via: SIP/2.0/UDP
> Provider_IP_Address:5083;branch=z9hG4bKn1va9h109091cms8h5a0.1;received=Pro
> vider_IP_Address From: "1828444" <sip:1828444 at c4.gw>;tag=rrZpHF51Z7a6D To:
> <sip:22021782 at Asterisk_IP_Address:5060>;tag=as5d16dbaf Call-ID:
> 6bba7f72-3874-1234-0b95-0090fb3d96e0-UASession-CX9lUh8LWc-UASession-kOSBFq
> loi5 CSeq: 1 INVITE User-Agent: Asterisk PBX Allow: INVITE, ACK, CANCEL,
> replaces Content-Length: 0 <------------>

"488 Not acceptable here" usually means that negotiation failed for want of 
any mutually-supported codec.  Make sure that you have "alaw", which is the 
native format used by the PSTN in civilised countries  (and therefore, there 
is little need to use anything else unless you know you will never want PSTN 
connectivity),  enabled at your end.

Can you run this command and post the output?  (It should all be on one line, 
but my mail client or yours may have eaten it)

$ awk '/[[]|allow/&&!/^[ \t]*;/{printf "%6d:%s\n",NR, $0}' 

This will look for [section headers] in square brackets and lines containing 
"allow" (which also will catch "disallow") that are not commented out, in your 
SIP configuration, and print them out with line numbers.


Note:  Originating address only accepts e-mail from list!  If replying off-
list, change address to asterisk1list at earthshod dot co dot uk .

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