; debug
\nexten => 5000,1,NoOp(Caller-ID: ${CALLERID(all)})
\nexten => 5000,2,NoOp(SIP From: ${SIP_HEADER(From)})
\nexten => 5000,3,NoOp(SIP To : ${SIP_HEADER(TO)})
\nexten => 5000,4,NoOp(SIP PAI : ${SIP_HEADER(P-Asserted-Identity)})<\/p>\n; try to extract phone number from sip header P-Asserted-Identity
\nexten => 5000,5,Set(FON=$[\"${SIP_HEADER(P-Asserted-Identity)}\" : \" 5000,6,ExecIf($[${ISNULL(${FON})}=0]?Set(CALLERID(num)=${FON}))<\/p>\n; debug
\nexten => 5000,7,NoOp(Caller-ID: ${CALLERID(all)})
\n...<\/sip:><\/code><\/div>\n
Explanation:
\n5: We extract the number using RegExp<\/em> and save the result to the variable FON<\/code>.
\n6: If FON<\/code> is not null, we replace CALLERID(num)<\/code> with the value of FON<\/code>.<\/p>\nHere are two use cases and Asterisk output:
\nParticipants for the example (phone numbers, IPs, and all TAGs are obscured).
\nCalled Party<\/span> (Asterisk<\/strong> with Sipgate account):
\n– Phone number = 072198765432<\/span>
\nCaller 1<\/span> (Fritzbox with Sipgate account):
\n– Sipgate ID = 12345e0<\/span>
\n– Phone number = 072112345678<\/span>
\nCaller 2<\/span> (Mobile):
\n– Phone number = 017112345678<\/span><\/p>\nCase 1: Caller 1 (Sipgate -> Sipgate):<\/strong><\/p>\n\n
-- Exec...1] NoOp(\"SIP\/sipgate.de-000000b6\", \"Caller-ID: \"\" <12345e0<\/span>>\") in new stack
\n-- Exec...2] NoOp(\"S..b6\", \"SIP From: <sip:12345e0@sipgate.de<\/span>>;tag=CAFEBABE\") in new stack
\n-- Exec...3] NoOp(\"S..b6\", \"SIP To : <sip:072198765432@sipgate.de<\/span>>\") in new stack
\n-- Exec...4] NoOp(\"S..b6\", \"SIP PAI : <sip:072112345678@sipgate.de<\/span>>\") in new stack
\n-- Exec...5] Set(\"S..b6\", \"FON=072112345678<\/span>\") in new stack
\n-- Exec...6] ExecIf(\"S..b6\", \"1<\/strong>?Set(CALLERID(num)=072112345678<\/span>)\") in new stack
\n-- Exec...7] NoOp(\"S..b6\", \"Caller-ID: \"\" <072112345678<\/strong><\/span>>\") in new stack
\n-- Exec...8] ...<\/code><\/div>\nExec…5: The caller’s external phone number was written to FON
\nExec…6: 1?<\/code> => Condition met => replace CALLERID(num)
\nExec…7: Verification that the number was replaced (cf. Exec…1)<\/p>\nCase 2: Caller 2 (mobile -> Sipgate):<\/strong><\/p>\n\n
-- Exec...1] NoOp(\"S..b8\", \"Caller-ID: \"017112345678<\/span>\" <017112345678<\/span>>\") in new stack
\n-- Exec...2] NoOp(\"S..b8\", \"SIP From: \"017112345678<\/span>\" <sip:017112345678@sipgate.de<\/span>>;tag=cafebabe\") in new stack
\n-- Exec...3] NoOp(\"S..b8\", \"SIP To : <sip:004972198765432@sipgate.de<\/span>>\") in new stack
\n-- Exec...4] NoOp(\"S..b8\", \"SIP PAI : \") in new stack
\n-- Exec...5] Set(\"S..b8\", \"FON=\") in new stack
\n-- Exec...6] ExecIf(\"S..b8\", \"0<\/strong>?Set(CALLERID(num)=)\") in new stack
\n-- Exec...7] NoOp(\"S..b8\", \"Caller-ID: \"017112345678<\/span>\" <017112345678<\/span>>\") in new stack
\n-- Exec...8] ...<\/code><\/div>\nExec…5: Pattern matching fails because the header is not set, so the variable FON<\/code> is null<\/code>.
\nExec…6: 0?<\/code> => Condition not met => do nothing
\nExec…7: Verification that the number remained unchanged (cf. Exec…1)<\/p>\nThe end devices now always display the caller’s external phone number. This allows the caller to be called back even if a call is missed. <\/p>\n
Have fun,<\/p>\n
= C. | SaaS Web Tech Lab =<\/em><\/p>\nP.S.: It’s funny that the Sipgate app also only shows the internal ID (“Call from 12345e0”), and you’re confused about who is actually calling…<\/p>\n","protected":false},"excerpt":{"rendered":"
Calls between Sipgate participants are automatically routed as SIP calls, even when dialing the “external” phone number. This offers the advantage that calls between Sipgate participants are free, as the calls are processed over the internet. However, it would also be nice to know who is calling \ud83d\ude09 Problem: The From-Header then contains not the \u2026<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[981,983],"tags":[950,919,885,834,897,1298,845,842,844,1186,925,861,856,832,890,998,902,1042,914,1077],"class_list":["post-11415","post","type-post","status-publish","format-standard","hentry","category-programming","category-tutorial","tag-sipgate-de","tag-asterisk","tag-between-sipgate-participants","tag-caller-id-spoofing","tag-callerid","tag-dial-plan","tag-execif-callerid","tag-extract-phone-number","tag-incorrect-phone-number","tag-internal-sipgate-call","tag-msn","tag-p-asserted","tag-p-asserted-identity","tag-phone-number","tag-rfc-3325","tag-saas-web","tag-sip","tag-sip-header","tag-sipgate","tag-tech-lab"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.saasweb.agency\/en\/wp-json\/wp\/v2\/posts\/11415","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.saasweb.agency\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.saasweb.agency\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.saasweb.agency\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.saasweb.agency\/en\/wp-json\/wp\/v2\/comments?post=11415"}],"version-history":[{"count":0,"href":"https:\/\/www.saasweb.agency\/en\/wp-json\/wp\/v2\/posts\/11415\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.saasweb.agency\/en\/wp-json\/wp\/v2\/media?parent=11415"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.saasweb.agency\/en\/wp-json\/wp\/v2\/categories?post=11415"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.saasweb.agency\/en\/wp-json\/wp\/v2\/tags?post=11415"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"Asterisk\"](\"https:\/\/www.saasweb.agency\/wp-content\/uploads\/2012\/02\/asterisk-logo.jpg\" "\\"asterisk-logo\\""){kind=logo}
Calls between Sipgate participants are automatically routed as SIP calls, even when dialing the “external” phone number. This offers the advantage that calls between Sipgate participants are free, as the calls are processed over the internet. However, it would also be nice to know who is calling \ud83d\ude09 <\/p>\n