Linksys SPA921 – quick reference admin 26. February 2009 SIP UA 0 Comments Quick reference guide for Linksys SPA921 VoIP phone. Rate this post TweetPinShare0 Shares Post navigation Previous Previous post: NHRPNext Next post: Linksys SPA921 – User guide Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment * Name * Email * Website This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply. Receive news updates via email from this site